Search for light dimmer in Topics


Car light dimmer

Hi all, Can someone show me how to make a car dimmer or point me in the right direction to make one. Just to recap this is like the new cars when you open the car the light fades up and when the car door is closed the light will take 5 to 10 seconds to dim out. Thanks in advance.

Topic by Dave-v-v    |  last reply


Arduino light dimmer code? Answered

I am creating a 6 channel light dimmer system using an arduino duemilanove. I want to control it using push buttons to  dim and brighten. I want to setup 6 buttons to corresponding to the 6 channels. Then I want an up, down, and on/off button. When you hold down a channel button, it activates to up and down button to control that channel. I want the on/off button to turn all channels to full brightness or completely off. I am basing the dimming part of the circuit off of this instructable: https://www.instructables.com/id/Arduino-Powered-Musical-Christmas-Lights/. Anyway, I have ordered an arduino but want someone to check out my code before I build this. I have made many things but am new to writing my own code so I would appreciate any improvements and friendly advice.  Here is the code: int light1pin=3; int light2pin=5; int light3pin=6; int light4pin=9; int light5pin=10; int light6pin=11; int button1pin=0; int button2pin=1; int button3pin=2; int button4pin=4; int button5pin=7; int button6pin=8; int uppin=12; int downpin=13; int onoffpin=14; int onoff=0; int light1=255; int light2=255; int light3=255; int light4=255; int light5=255; int light6=255; int interval=1; void setup() {   pinMode(light1pin, OUTPUT);   pinMode(light2pin, OUTPUT);   pinMode(light3pin, OUTPUT);   pinMode(light4pin, OUTPUT);   pinMode(light5pin, OUTPUT);   pinMode(light6pin, OUTPUT);   pinMode(button1pin, INPUT);   pinMode(button2pin, INPUT);   pinMode(button3pin, INPUT);   pinMode(button4pin, INPUT);   pinMode(button5pin, INPUT);   pinMode(button6pin, INPUT);   pinMode(uppin, INPUT);   pinMode(downpin, INPUT);   pinMode(onoffpin, INPUT); } void loop() {   analogWrite(light1pin, light1);   analogWrite(light2pin, light2);   analogWrite(light3pin, light3);   analogWrite(light4pin, light4);   analogWrite(light5pin, light5);   analogWrite(light6pin, light6);   if (digitalRead(onoffpin) == HIGH && onoff == 0){     light1=255;     light2=255;     light3=255;     light4=255;     light5=255;     light6=255;     onoff=1;   }   if (digitalRead(onoffpin) ==  HIGH && onoff == 1) {     light1=0;     light2=0;     light3=0;     light4=0;     light5=0;     light6=0;     onoff=0;   }   if (digitalRead(button1pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light1 < 255){       light1 = light1 + interval;     }     if (digitalRead(downpin) == HIGH && light1 > 0){       light1 = light1 - interval;     }   }   if (digitalRead(button2pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light2 < 255){       light2 = light2 + interval;     }     if (digitalRead(downpin) == HIGH && light2 > 0){       light2 = light2 - interval;     }   }   if (digitalRead(button3pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light3 < 255){       light3 = light3 + interval;     }     if (digitalRead(downpin) == HIGH && light3 > 0){       light3 = light3 - interval;     }   }   if (digitalRead(button4pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light4 < 255){       light4 = light4 + interval;     }     if (digitalRead(downpin) == HIGH && light4 > 0){       light4 = light4 - interval;     }   }   if (digitalRead(button5pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light5 < 255){       light5 = light5 + interval;     }     if (digitalRead(downpin) == HIGH && light5 > 0){       light5 = light5 - interval;     }   }   if (digitalRead(button6pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light6 < 255){       light6 = light6 + interval;     }     if (digitalRead(downpin) == HIGH && light6 > 0){       light6 = light6 - interval;     }   } }

Question by bmrodgers3365    |  last reply


how to make Automatic light dimmer using LDR?

I tried to make this light dimmer circuit but it's not worked because of my  LDR exploded  why is that..  any similar circuit diagram ? thanks.... This is the circuit i used..

Question by ishan udyoga    |  last reply


Computer room keyboard light

   I want a dimmable low-wattage led lamp to mount to my computer desk shelf. It will sit above the keyboard, shining diffuse light down but not directly at me.    I could mount it underneath with screws, or have it sit on the shelf above, looking over it.    It'll be powered by 120V 60Hz, so no batteries required.    I have two design problems that I need to solve before I start.    First, I need a diffuse light source that will light up my entire keyboard without blinding me with a direct view. This should be a warm white rather than something bluish or cold, since I don't want to lose my night vision. (I watch movies and do graphics on the computer at night.)    I haven't been able to think of anything that will fit back far and high enough that my slouched posture won't cause a problem. I thought of an opaque diffuser that the light would shine up into, but the geometry seems a little tight.    Second, I would like recommendations for the dimmer control. I want to dim the light right down to nothing, and switch it off, easily and quickly for when I'm stumbling off to bed. It needs to be a bit sturdy to handle my fumble-fingered ways, and quick to find.    I appreciate any suggestions anyone can come up with, and I'll be glad to gab on more about what I want if you have any questions.    The shelf is 28" or more from my eyes when seated at the desk, and about 30 degrees of it is currently blind to me at maximum slouchiness. It sits 6.25" above the desk, and I can easily spare 4" of clearance under it; the only other thing that has to fit there is the keyboard itself with a little wiggle room.

Topic by Trelligan    |  last reply


raspberry pi digital dimmer of light bulb

Hai, iam working on dimmer light project with raspberry pi the module which iam using from research design lab issues with the device to test or run it. please any one can suggest me can i change the module to wifi based dimmer module to test or run the light dimmer. thank u

Topic by james2jain  


Could I use tip31c transistors to dim LED lights of 0-5w? Answered

Like the Music to LED blinker projects. I was thinking that instead of using the LEDS to blink to the voltage which I think is the peak in voltage. I could use a pot to control the input of voltage and then the transistor could ramp it up like show in the instructable(s). Example: as you increase the voltage with the potientometer the tip31c controls the amount of voltage that is produced. Oh, and by the way im using slide pots, thats why I dont use a light dimmer. If you have any other suggestions of thoughts you are free to say. Thanks Oscar.

Question by oscarthompson    |  last reply


How would you make a 12V light dimmer?

I have a portable 50W light that is run off a 12V 7Ah battery. In some cases the light is too bright so i was wondering what parts i would need to make a dimmer for it.

Question by somerockenguy    |  last reply


How do I make a dimmer for my christmas lights?

I have some x-mas lights(the incandescent kind, not LEDs) hanging on the ceiling in my bedroom but they are a little too bright sometimes, so I thought it would be fun to attach some sort of dimmer switch to them. Do I need anything special or can I just hook up any old potentiometer I can find in my junk bin?

Topic by cannedham160    |  last reply


Electrician help! Dimmer Switch says 'do not use with less than 60 watts'. Why? Answered

I'm looking to run some screen lighting for my projector - but its only 30 watts total (among 5 lights tranformers, tolerant of funky AC)... Will the triac inside not fire properly without load?

Question by frollard    |  last reply


12V 10 watt LED light bulb dimmer?

I'd like to make dimmers for the Phillips EnduraLED 10 watt 12V bulbs. Preferably using slider switches. Like the audio industry uses.? I have a need for a total of 12 dimmers for a feature lighting project on my house.

Question by lonny j    |  last reply


Wireless controlled (bluetooth/wifi) dimming light bulb

Hello guys! I was wondering if there are dimmable light bulbs in the market that can be controlled over wifi or bluetoooth. I have an idea for a product and an app to control it. Can anyone help? Thanks a lot! Sam

Topic by samumar    |  last reply


Arduino dimmer code

I am creating a 6 channel light dimmer system using an arduino duemilanove. I want to control it using push buttons to  dim and brighten. I want to setup 6 buttons to corresponding to the 6 channels. Then I want an up, down, and on/off button. When you hold down a channel button, it activates to up and down button to control that channel. I want the on/off button to turn all channels to full brightness or completely off. I am basing the dimming part of the circuit off of this instructable: https://www.instructables.com/id/Arduino-Powered-Musical-Christmas-Lights/. Anyway, I have ordered an arduino but want someone to check out my code before I build this. I have made many things but am new to writing my own code so I would appreciate any improvements and friendly advice. Here is the code: int light1pin=3; int light2pin=5; int light3pin=6; int light4pin=9; int light5pin=10; int light6pin=11; int button1pin=0; int button2pin=1; int button3pin=2; int button4pin=4; int button5pin=7; int button6pin=8; int uppin=12; int downpin=13; int onoffpin=14; int onoff=0; int light1=255; int light2=255; int light3=255; int light4=255; int light5=255; int light6=255; int interval=1; void setup() {   pinMode(light1pin, OUTPUT);   pinMode(light2pin, OUTPUT);   pinMode(light3pin, OUTPUT);   pinMode(light4pin, OUTPUT);   pinMode(light5pin, OUTPUT);   pinMode(light6pin, OUTPUT);   pinMode(button1pin, INPUT);   pinMode(button2pin, INPUT);   pinMode(button3pin, INPUT);   pinMode(button4pin, INPUT);   pinMode(button5pin, INPUT);   pinMode(button6pin, INPUT);   pinMode(uppin, INPUT);   pinMode(downpin, INPUT);   pinMode(onoffpin, INPUT); } void loop() {   analogWrite(light1pin, light1);   analogWrite(light2pin, light2);   analogWrite(light3pin, light3);   analogWrite(light4pin, light4);   analogWrite(light5pin, light5);   analogWrite(light6pin, light6);   if (digitalRead(onoffpin) == HIGH && onoff == 0){     light1=255;     light2=255;     light3=255;     light4=255;     light5=255;     light6=255;     onoff=1;   }   if (digitalRead(onoffpin) ==  HIGH && onoff == 1) {     light1=0;     light2=0;     light3=0;     light4=0;     light5=0;     light6=0;     onoff=0;   }   if (digitalRead(button1pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light1 < 255){       light1 = light1 + interval;     }     if (digitalRead(downpin) == HIGH && light1 > 0){       light1 = light1 - interval;     }   }   if (digitalRead(button2pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light2 < 255){       light2 = light2 + interval;     }     if (digitalRead(downpin) == HIGH && light2 > 0){       light2 = light2 - interval;     }   }   if (digitalRead(button3pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light3 < 255){       light3 = light3 + interval;     }     if (digitalRead(downpin) == HIGH && light3 > 0){       light3 = light3 - interval;     }   }   if (digitalRead(button4pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light4 < 255){       light4 = light4 + interval;     }     if (digitalRead(downpin) == HIGH && light4 > 0){       light4 = light4 - interval;     }   }   if (digitalRead(button5pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light5 < 255){       light5 = light5 + interval;     }     if (digitalRead(downpin) == HIGH && light5 > 0){       light5 = light5 - interval;     }   }   if (digitalRead(button6pin) == HIGH) {     if (digitalRead(uppin) == HIGH && light6 < 255){       light6 = light6 + interval;     }     if (digitalRead(downpin) == HIGH && light6 > 0){       light6 = light6 - interval;     }   } }

Topic by bmrodgers3365    |  last reply


LDR and/or PWM for energy efficient 'smart' dimmer?

Is there any way to combine a Light Dependent Resistor or other light sensor with a Pulse width modulator to (energy efficiently) dim indoor lighting in the presence of sufficient natural light?  Thanks!

Question by bbawco2    |  last reply


can I use a rectifier as a dimmer for halogen light bulbs?

I am wiring a custom exhaust hood, and am wondering if I could use a IN5402 rectifier diode rated at 3 amps, 200 PIV connected in series with a 1.9 amp halogen light load, running at 120 Volts AC in order to dim the lights in the hood at about half bright? Wondering specifically if I will run into any problems with the longevity of the "dimmer", or the life of the bulbs? Also wondering if any one might know how I could make a very simple circuit that could slow a fan down to about half speed. I am using single pole double throw bat handle switches to make a high and low setting. High will just go straight through, and low will go through the dimmer or speed reducing module. Thanks rik

Question by wirepig    |  last reply


Led lights

Hello everyone, i have a question and i think people here on instructables are best suited to help me! So i wanted to connect 21 leds together to make a bigger light. I would connect them in parallel and in series (3 in series 7 rows :P) and i thought i would use a 12v 7Ah battery to power this thing. The problem is i also wanted to use an arduino so they would turn on automatically but it can not output 12v. So is it beter to use the arduino to phisiclly controll a switch to turn the leds on or is it possible to power the arduino and then output 5v to the leds. And if it is will they be dimmer? or will the system draw more current killing my battery faster? Thats my problem and i hope someone here can help me. Thank you in advance.

Topic by thecreatorst    |  last reply


Is there such a thing as Motion-detecting Dimmer Switches?

HEllo. I am wondering about either dc or ac auto dimmer switches. What I would like to do is make a series of auto on and auto off dimming blacklights for a gallery. I haven't found much of anything online. I wondered if there is a diy workaround possible?

Question by sreudianflip    |  last reply


How do I go about making a Lutron 120vac 60hz household dimmer light switch capable to use for 12vdc??

I want to use this switch for examle in my car connect by the accessory or cigarette lighter plug and it will run a 12vdc fan motor i can control cfm/speed.

Question by KrAx    |  last reply


Does anyone have any guides on how to make a dimmer for halogen lights? ?

I'm trying to install a dimmer in my car for 2 fog lights. they're about 40 watts each. I would like to be able to dim these bulbs. Thanks.

Question by krazieboy    |  last reply


how to modify a dimmer switch (230V,50Hz supplying 5 incandescent bulbs of 40W each) to get max. brightness variation?

There's a dimmer switch connected to 5 lamps. Problem is the dimmest light occurs halfway of the span of the dimming knob. How do i tinker with the dimmer so the dimmest light occurs nearer the OFF position?

Question by rammstein2    |  last reply



Why doesn't my RF inline dimmer activate LED strips when powered by a car battery?

I built a 12VDC, 2A lighting system in my truck topper to run off my engine's battery and it works fine unless I add an inline RF dimmer and then it doesn't respond. When the same system is powered by a separate transformer that receives 120VAC and provides 12VDC, 3A the RF dimmer works fine. Any idea how to solve this problem? The system is built with these parts: LED strips amzn.com/B00HSF66JO RF dimmer amzn.com/B00MHKCTLE LED strip transformer amzn.com/B00DKSI0S8

Question by NickD163    |  last reply


Can someone please help with a simple lighting circuit.?

I connected 7 NiMh batteries in series. I connected another set of 7 NiMh in series. Then, I connected the 2 sets together in parallel. A voltage check of the battery pack reads 9.4V. I want to build a miner style light out of it. I'd like to put the battery pack on a belt, and have a control box, also on the belt, with an on/off switch, a dimmer, and a battery recharging connection. I know how to solder and have a basic understanding of electricity. What type dimmer, bulb, etc. would be best? I'd like the light to be as bright as possible, without continually blowing bulbs. Something like this is what I had in mind, but I'm not sure what size/type components to use. Also, am I missing anything? http://i1114.photobucket.com/albums/k522/ALcoonslammer/lightcircuit.jpg

Question by coon_skinner    |  last reply


Circuit Needed for cabinet lighting : 30 LED , with Dimmer single color (white)?

I've got a rectangular cabinet which needs some lighting on the inside , i plan to make one with LEDs around the perimeter on the inside with 30 Leds , could i get a circuit for it along with a dimmer if possible . (AC supply is 240 V ) .

Question by Strydon    |  last reply


how to make auto headlamp light brighter without to replace with a new unit.?

My car headlight is getting dimmer and dimmer because the reflector in the headlamp had worn out, is there any low cost way that i can refurbish the headlamp to make it light brighter without to replace it with a new headlamp unit.

Question by hamz622    |  last reply


Video/Photog Lighting - COLLABORATE on homebrew Light Panels!

This is the link to the pro version of my project http://www.litepanels.com/ Basically, a light panel is a panel of evenly spaced super bright LED's that you can then mount and place like traditional lighting around your setup. In an ideal world Brightness of 5200K + would be a good place to be. However, I've just learned that lightpanels actually only put out 4900K. And they're crazy expensive. These replace the HUGE softbox and/or Umbrella + lighting combo+ power setups. So, my suggestion for a group project here is to ... teach ourselves how to make a grid of superbright LED's, arrange them into this matrix, and add a dimmer switch in order to alter the quality of the lights. If this is something anyone is at all interested in, I would LOVE to collaborate on this project! I just installed the Magic Lantern firmware hack on my camera, and well... the addition of better lighting would help my filming SIGNIFICANTLY.  I'll post my findings, proposed project plan, and 

Topic by Cakeable    |  last reply


is it possible to hook a dimmer switch to a cordless tool charger to make it universal for any voltage?

I dont know much about much but i have ideas sometimes lol the question pretty much sums it up useing a dimmer switch for a light in oes house to create a uiversal battery charger for power tools dewalt ryobi bosch etc thanks for ur time

Question by pytlakw    |  last reply


What can be the problem with this circuit?

I built this Opto Sensitive Dimmer's dimmer part first just one led the Orange is light. but can be the problem? I built this on a test board so sorry for the soldering.

Topic by bothbence62    |  last reply


How can I make a wake-up light? Answered

You must've seen them before, those alam clocks that simulate the "rise and shine" feel when you need it the most: winter. Now instead of wasting money on one with chirping bird sounds and other stuff I don't need, I want to build one myself. The problem is that this would be my first design of an electronic device, and I don't know where to start. Should I get an arduino for being the clock + alarm clock part? Is there a more elegant way of having a 1Hz alarm clock triggering a light dimmer circuit? Is using an LED bulb a good idea? Where do I start? The fundamentals don't seem that complex, but it's putting it in practice and actually drafting the design and picking the right components that's hard.

Question by cephalopoid    |  last reply


what's going on with my LED dimmer circuit? Answered

I'm making a resin block lighting thing for my dorm room, but the lights are too bright to look directly at (and it's meant to be looked at). I decided to make a 555 dimmer circuit, and I used these plans. http://www.555-timer-circuits.com/led-dimmer.html when I built it, however, the LED stayed off. I couldn't figure out what was going on until I touched the two diodes in the circuit and noticed that the small current leaking through my skin caused the LED to blink slowly. I turned one of the diodes around, and lo and behold, the dimmer worked as expected. so what I want to know is: what was the purpose of the diodes in the original diagram? was the positioning of the diodes just an error in the design? should I run with what I have now (since it works), or do something different?

Question by codongolev    |  last reply


LCD lights in-ceiling on dimmer switch and motion sensor on AC

I would like to install about 9-16 LEDs in my garage ceiling for lighting. I want to be able to press a button to switch the lights on and off, as well as have a motion sensor that will be able to turn them on when i drive into the garage or walk into the garage. I want to cut relatively small holes in the sheetrock in the ceiling for each LED fixture and then have all of the wiring be in above the ceiling. I can follow directions really well, and have basic knowledge of LED technology. I do not know which LEDs are the correct ones to use, if I need a fixture or not, how to wire them all, what type of motion sensor to use, and what type of switch to use. Also, what is the best way to power my lights? I would like to connect them to a regular power line from in the attic, but am unsure what I would need to make that work. I assume I could tap into the power line that connects to a few plugs in the garage, or even disable the current single bulb light and use that connection. Running the wires and making my way through the insulation won't be a problem. Thanks for the help on my project! I'll definitely post pics and show how I did it once I'm done. --quick thought... maybe a dimmer-motion sensor light switch (lutron?) would work for the controls?

Topic by polomaan    |  last reply


Is there a circuit that can make a string of 10 LEDS blink?

I have these party lights my girlfriend bought from a store and was curious if there's a 555 timer circuit that can run on 3 volts and make the lights blink on and off without it making the lights dimmer.

Question by deadkid0    |  last reply


How do i set up 4 wireless lights with independent battery sources on four independent dimmer switches?

I'm in theatre and i need to get 4 people to light up with different assortments of brightness.  We have a dedicated "switch hitter" that has power outlets but as the actors will be moving they will need independent lighting.  Thanks for the help.

Question by jens3117    |  last reply



Trouble with Electric Circut

I am trying to make a proofing box for bread making, and have run into a small snag. When I try to adjust the electricity going to the light bulbs in the box with my dimmer switch nothing happens, also when I try to turn the light bulbs off with the rheostat it trips my circuit breaker. I am using 4 7watt 120volt bulbs arranger in a parallel circuit, which are connected to a 600watt dimmer switch. If anyone knows what I am doing wrong I would appreciate the help.

Topic by Sedgewick17    |  last reply


solar light last longer than flashlight

My husband was working on the fence, as it was getting dark i went to get the flashlight which if you have it on too long it will dimmer too soon, so i have this idea of using our only outdoor solar light which last 8 to 10hours and he could see very good with it.  I think it is a great idea for when the electricity goes out you can use the solar light in your home.

Topic by saint-eustache    |  last reply


Need help with plans for a LED room lighting system

Hey guys and gals,I'm looking to install a full scale LED lighting system in my room, because I'm tired of blowing bulbs and incandescents, and I want something new. Id like to install a standard white light LED system for the main lights, and incorporate a RGB setup into the fixture. I want the fixture to run around the upper perimeter of the room, and contain enough lights to light a 15' x 12' x 8' room.My questions as of now:What are the highest output white LEDs I can get with a "wider" viewing angle?And how can I incorporate a dimmer into the standard white setup?I was to use this Instructable as a guide also for the RGB setup.https://www.instructables.com/id/RGB-Color-Controllable-High-Power-LED-Room-%2b-Spot-/Thank you very much in advance.

Topic by Smitherines  


Got a LED light bar, what to do...?

Http://www.ccs-grp.com/s2_ps/src/pro_item/1/1/3/114/1053/e.html So I got a a couple of these that I found at work...  Planning to use them for my fish tank.  Kinda worried that they will be TOO bright. Can I buy a dimmer to wire them up to?  I know very little about all this, I have a coworker that knows far more. But I was hoping to pick your BRa--IIA-NS!!!

Topic by benjaminleebates  


Is the strength of blacklight Flourescence proportionate to the strength of the source, or is there a threshold?

Say I have a black light hooked up to a dimmer switch and a material that fluoresces under black light. As I gradually increase the 'brightness' of the black light, can I expect the fluorescent material to fluoresce gradually brighter, or is there a definite 'threshold' below which there is no fluorescence? Will the same hold true for IR-fluorescent materials and IR sources? Thanks in advance!

Question by lcllam    |  last reply


Speed Control for AC Electric Motors

Can anybody tell me how to build a controller to adjust the speed of an 110VAC electric motor, ( ex: blower motor, fan motor ) I was cautioned about using a light dimmer. bill

Topic by broham    |  last reply


Help with color changing LEDs?

So I am looking to do something like this http://www.skyfactory.com/products/ with LEDs, but what I want to do is have some red and yellow LEDs in the light fixture and put them all on a remote or dimmer switch, so when I turn it down, it will mimic a sun set. I have no idea how to do that. Any suggestions? Bonus points for anyone who would know how to incorporate fiberoptics for starlight.

Question by Focker    |  last reply


Color Shift Dimming LEDs

Dim an incandescent, and it produces a mellow, warm orange sunset glow. Dim an LED, with the same SCR dimmer, and it flickers at 60 hertz, still producing harsh blueish light. How can LEDs more closely mimic incandescents?

Topic by Toga_Dan    |  last reply


Trying to make a black light mirror the magnitude of speakers Answered

Trying to make a black light mirror the magnitude of speakers, not just on or off if the sound is loud enough, I'm trying to make it get brighter and dimmer as the music gets louder and softer. Help please? I can't find anything online that would be variable, all I can find is guides for LEDs, which are much lower power than anything I'd like to use, and guides for modules that simply switch on or off like the clapper. Any advice or ideas would be greatly appreciated

Question by moses324    |  last reply


Will my Cold Cathode Computer Light work?

I just bought a Coolermaster ULTRA AURORA (DUAL) from a local store. On arriving home, i went to place it in my new HAF 932 case from Coolermaster. I have open slots and power supply for it but my video cards are to big to place it from the inside into the rear panel port. It has a on and off switch and a dimmer on it. Since i cant fit it in, i looked at bypassing the switch. the cord that plugs into the psu can fit in the switch or the inverter. I wanted to know if i can SAFELY bypass the switch. Go directly from the psu to the inverter to the bulbs is my plan. Would that be bad for anything? Coolermaster was of no help. Apparently, the model is 5 years discontinued no longer has manuals on file. They were less then helpful.

Question by trf    |  last reply


LED Lamp current X DRIVER

Hello very good people, 1. Someone told me that I can connect a 3.8A led lamp to 100w driver 3A (constant current) because the driver will dimmer the lamp. Is this correct? 2. Is the driver that operates according to the capacity of the bulb (3.8A) or is the lamp that operates according to the capacity of the driver (3A)? The current of which one acts according to the other? Thank You

Question by logoaki    |  last reply


EcoDimmer: New hardwired/DC LED lighting for DIYs

Hello everyone,My name is Mark Gilmore, and I am the owner/president of Omnipotence Software.We have been developing automation software since 1990, our primary product being "ECS"(http://OmnipotenceSoftware.com/wpr.htm).We have been closely following the trend towards LED lighting for a few years now.But when we looked for systems that could be automated, we found a void in the market.So we decided to make our own:Our "EcoDimmer" controls up to 16 low-wattage (DC) lights or appliances with push-buttons,keypads, and/or automation software (like ECS).To our knowledge, this is the only direct-wired/DC lighting system that can be automated.The EcoDimmer is intended for installers and DIYs.It does not include buttons, lighting, or the dimmer's power supply, as these will varygreatly for different applications. So with the exception of the optional/pre-installed keypad,these must be purchased separately and wired to the unit. But as only 2 connections are required for each, anyone can perform this task with a screwdriver and a knife. For further details, please see http://OmnipotenceSoftware.com/wpe.htm.We welcome any feedback (esp as this is a new product) !Regards,Mark Gilmoresupport@OmnipotenceSoftware.com

Topic by MarkGilmore  


Led driver help.

I want to make a aquarium light unit with 100 cool white 14000k 3w ,DC Forward Voltage 3.4-3.6V ,Forward Current 700mA and 100 Royal Blue DC Forward Voltage: 3.6V - 4.0V  ,Forward Current: 700mA  i want 2 dimmers 1 for whites 1 for the blues, can someone please tell me what divers i need  and how many i need. if imposable links to the driver on ebay.

Question by awilloughby3    |  last reply


Transistor help.... very basic, LDR/LED

I'm trying to make a very simple circuit to light an LED based on light from an LDR. I have all the components, it's a white LED, I'm using two AA batteries, and the LED glows brightly when I attach it to the batteries, but when I attach it to the LDR, it is either dim or dimmer due to the resistance... I'm sure I need to use a resistor for this... I have some assorted PNPs and NPN2222As... I've looked at a couple tutorials, but none of them seem to work... does anyone know how to do this without any (or as few as possible) other components? Thanks

Topic by perkinsb1024    |  last reply


Need help with rewiring a nightmare.

I have a box with 4 cables coming in. found one cable with power on white and black wire.  I have connected all the white wires together and the black and the ground  now with the hot wires i placed the white/hot wire on the top of the switch. don't know what to do with that black one, I have tried putting a black pigtail on the bottom and it lets me turn the light on but turning it off it's still on but dimmer.   None of the wires are labeled and you can't tell where they go. this "box" had two outlets one to the hall light and one to outside which wasn't really working. and then it goes to the kitchen as well as the bathroom light and two of the three bedrooms, one on each end of house.  Can someone help me figure this out, I have blown some breakers  and i even had this "pretty" light flash when testing which wire is what.  Thanks to anyone who can help. please send info to bluefly1267@gmail.com  

Topic by bluefly1215    |  last reply


help wiring 12x 10w led chips

Hi I just bought 12 SMD white led. i want to make a distraction device for airsoft. I got the LEDs but now I need some newbie friendly help to connect these light and get a proper power supply for these. I don't know how much power will I be needing for them. Here are the details of the led lights from the ebay page SPECIATIONS Voltage: 9-12V / 900mA Chip: Genesis's LED 30Mil chip Luminous Flux: 900-1000LM Output Power: 10W Light Color: Warm White 3000k-3200k Cool White 6000-6500k Beam Angle: 120-140 i want to run them off a 11.1v lipo they are about 12v fully charged. its all got to be kept quite small too. i need to know what drivers i need etc. i also want it to be remote controlled. would this work as the driver? and ran the chips in 2S6P? http://www.banggood.com/8A-DC12-24V-LED-Strip-Light-Single-Color-Dimmer-Controller-With-Wireless-Remote-p-987970.html

Topic by Desolation91    |  last reply


How can I modify this circuit to sequentially turn on LEDs in parallel, while avoiding voltage drops? Answered

I have a single pole, 12 throw rotary switch which I want to solder to a set of LEDs so that rotating the switch clockwise lights more LEDs as follows: 1 = 1 Red LED 2 = 2 Red LEDs 3 = 3 Red LEDs 4 = 4 Red LEDs 5 = 5 Yellow LEDs 6 = 6 Yellow LEDs 7 = 7 Yellow LEDs 8 = 8 Yellow LEDs 9 = 9 Blue LEDs 10 = 10 Blue LEDs 11 = 11 Blue LEDs 12 = 12 Blue LEDs Since there will be a voltage drop across the diodes, the LEDs at the start of the chain will get progressively dimmer, and increasing the voltage would blow the LEDs in shorter chains. One modification I know I could already make would be to not use the first 4 diodes on the yellow LEDs, and the first 8 diodes on the red LEDs, as a minimum of 5 yellows and 9 blue will be active for each position. This still leaves a maximum of 3 diodes in each chain, which I still think would cause the lights to be much dimmer. Another solution I can think of is to have multiple wires coming from each terminal of the switch, each with their own diode, which would ensure all active LEDs had the same brightness (I'm not sure if this would cause the whole chain to be dimmer than shorter chains or not). The downside is this would need  31 wires rather than 13, and that's only if I bridged together all the shortest LED chains of each sequence: individual wires for absolutely every position would mean 79 wires+diodes). To put this in context, I want to create the health bar from Dead Space 3: If you can suggest a way of improving the circuit, or totally re-designing it, it'd help me loads! Thanks!

Question by Shadow Of Intent    |  last reply