LED Strip

Hello everyone! I have one question. I have 5m of 12v RGB LED strip. How i can connect them to some type of power bank? Is that even possible? I am making porch swing stand and i would like to add LED strips to it. Thank you very much!

Question by DarkM14 5 months ago  |  last reply 2 months ago


LEDs strips

who can help me, i need to make a very long LED strip, and i dont know how to do it, thnx for yor help :)

Topic by eyoung1 7 years ago  |  last reply 7 years ago


led strip?

Designing an electronic pill organizer that will use led's spaced every 1.25 in apart, seven across, a bank of four down. Must be thin and attachable to a consumer ready pill organizer. 

Question by wineguru2 5 years ago  |  last reply 5 years ago


LED Strips

Hey everyone! Ive been on this site for awhile, and find it simply amazing. And now I have a simple question for some electricians :) Im OBSESSED with light, literally OBSESSED. the only bad thing, is I know NOTHING in electronics, but ive started learning and am trying to assemble a very simple led strip light with some conductive tape, and 12v power supply and about 16 leds. (yes i know there is a bar tutorial, but i need some explaning on a few parts.) I want to just have 16 leds in a parallel or series, (prefer parallel) so it can be put on a very slim piece of wood/metal/sheet or wherever i place it. I tried using the ledcalculator, but it keeps telling me i would need a resistor for EACH led, and that would just defeat my set up being "small and simple" So is there anyway to just have ONE resistor in the VERY beginning, to limit the current of 12v down to 3.5 to supply to all the 16 leds? Kinda like in my drawing (that is bad) Because i want the assembly to be as small as possible, and would like not to use one for every LED And also, how many leds would i be able to drive in a parrallel with a 12v power supply? Thnx so much in advance!

Topic by mu0p 12 years ago  |  last reply 8 years ago


3v led strip?

I need to source a large quantity of light sources for interior emergency use. Needs to be a short, 300mm multi led light strip powered by a 3 v watch battery, with a mercury type position switch. Any ideas  where I could have them made?

Question by Algy 4 years ago  |  last reply 4 years ago


Diffusing led strip

I'm making my girlfriend's Christmas present. and part of it is using amber led strips wrapped around an oval to cast light out behind the object. What would be the best way to diffuse the leds to make a nice even light. I was thinking about embedding them in a slight groove, and then covering them with silicone caulk. Would that block too much light? what else could i put on top to diffuse them?

Topic by frdmrckr 5 years ago


portable led strip?????

I want to wirelessly power this led strip, is that possible? i also could use a usb, would that work? http://www.amazon.com/LEDwholesalers-Controller-2034RGB-3315-3215/dp/B0040FJ27S/ref=sr_1_4?ie=UTF8&qid=1396659149&sr=8-4&keywords=led+strip

Question by wlhsrobotics 5 years ago  |  last reply 5 years ago


LED strips design?

How are these LED strips wired? I know they must be in parallel but what kind of resistors and how many LEDs per parallell? If anyone has a diagram of a good layout on how to string up 48 green LEDs with a 12v power supply, it'd be much appreciated.http://cgi.ebay.com/300mm-Flexible-Led-Strip-w-30pcs-Green-Leds-Extendable_W0QQitemZ200170044029QQihZ010QQcategoryZ66949QQssPageNameZWDVWQQrdZ1QQcmdZViewItemandhttp://cgi.ebay.com/48CM-PVC-LIGHT-STRIPE-STRIP-IN-48-LED-BULB-LAMP-GREEN_W0QQitemZ300169468922QQihZ020QQcategoryZ66949QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Topic by mrshow555 11 years ago  |  last reply 10 years ago


Help with LED strips

I need around 300 ft of white led strips lights. I found 16.4ft strips on amazon. If I connected all (19) of them, would a normal ac outlet suffice? You may be thinking, what am i doing with 300 ft of leds, it is for decoration for my dad's business.  AC to DC converter  http://www.amazon.com/gp/aw/d/B007ME2HMQ/ref=aw_1st_sims_3?pi=SL500_SY115 Strips http://www.amazon.com/gp/aw/d/B002QQ1YOM/ref=mp_s_a_1_6?qid=1376277760&sr;=8-6π=SL75 If it doesnt work, how would i run all of them from an AC outlet The outlets are US standard (if that makes a difference)

Topic by Brinith 5 years ago  |  last reply 5 years ago


LED Strip Arduino

HI All, This might be a simple thing, but I am in a big of a Maker bubble and dont have anyone to call up and ask this question to. I have an arduino that I want to hook to a LED strip, THe thing is i dont know much about power and how to measure/ know you wont fry your stuff and Im worried that I might do that. So, I am coming to you to ask. Would this work? What do I need to do to make this work?  This is the type of LED Strip that I have.  https://www.amazon.com/Flexible-Non-waterproof-Decoration-Lighting-Daylight/dp/B00HSF65MC/ref=sr_1_3?ie=UTF8&qid;=1477221020&sr;=8-3&keywords;=led+strip+lights Thank you for your help!

Topic by mrworth 2 years ago  |  last reply 2 years ago


Powering an LED strip? Answered

Hi, I am looking to use a small LED strip on my bicycle. Something like the product below. I have no experience with LED strips, and am looking for a way to power them. I want something small & light to mount somewhere on my bike, and wondered what the best options would be? Would a 12V battery pack be suitable (see below). How long would this last roughly? Thanks! Dan LED: http://www.ebay.co.uk/itm/2x-6LED-Eagle-eye-Super-Bright-White-Flexible-Car-Daytime-Running-Light/151040285688?_trksid=p2047675.m2109&_trkparms=aid%3D555003%26algo%3DPW.CAT%26ao%3D2%26asc%3D29%26meid%3D1853554389978170290%26pid%3D100010%26prg%3D1013%26rk%3D2%26rkt%3D15%26sd%3D271286250637%26 Battery pack: http://www.ultraleds.co.uk/12v-1-25a-15w-mini-power-supply-ac-dc.html

Question by skatmandu2002 5 years ago  |  last reply 5 years ago


LED LIGHT STRIPS

Hi ordered LED light strips (16 foot ) we cut them to fit the back of out tv we cut in correct area now the lights won't change color or turn off ...and when they do we can chang ro like one two 3 colors the it stops

Question by Mrsmonrow12 1 year ago  |  last reply 1 year ago


24 LED strip

Hello all, I've got what i thought would be a simple project so i could take some impressive long exposure photos. eg: www.flickr.com/photos/24528515@N05/2356088056/in/pool-lightpainted Heres the materials i have: (also see pic) 1: 24 white led's soldered in series (yes i started without knowing what i was doing :P ) 2: A small 4.5v battery pack. 3: A simple clicky switch. Heres what i dont have: 1: A clue about resistors or where to add them. 2: I don't know what voltage the leds are as they were removed from a broken led lamp by my brother. (who also dumped the casing so i cant see what the circuit on it looked like) 3: Any more patience. :) The third pic just shows one of the 24 leds being tested with a 3v battery. I've done this with all 24 to make sure that there are no dead ones. Can anyone help my ignorance?

Topic by nodnodwinkwink 8 years ago  |  last reply 8 years ago


LED Question

I am putting a wire under my porch with LED's placed periodically along the length of it. It will light up a small garden just below/behind the porch, about 2 feet below the bottom of the porch. I am going for the effect seen in the attached picture. I have been looking online (esp DigiKey) for LED's and they give brightness ratings in millicandela, but I cannot for the life of me find a reference as to how bright 1mcd is vs 1000mcd (1 candela). I am looking for something that will give a mild, path-lighting like effect, but won't be so dim that it can only be seen when all other lights (i.e. the light above the porch) are off. These will only be on at night, and will most likely be a warm-white color. I will most likely rough-up the surface of the lights to make the beam more diffuse. Thank You!

Topic by wond3rbread1991 7 years ago  |  last reply 7 years ago


Light Strips? Answered

Instructibles had a contest a while back involving some kind of light up tube thing that wasn't led.  I don't remember what it was though, anybody remember it?

Question by jj.inc 7 years ago  |  last reply 7 years ago


How to connect LED Strip

​Dear sir, i have purchased a 5 Meter LED strip with adaptor today in online. can u just instruct me how to connect the strip? the 12V adaptor will work for 5 Meter strip or can i use it the strip by cut in to pieces? kindly help me in this regard.

Topic by shiva_nalla 4 years ago  |  last reply 4 years ago


Led strip section not working?

I got a Led strip and a section of it doesnt light up blue but it lights up green and red. Also any variant that requires blue for a colour shows as that variant, EG Cyan on the one half but green on the side that does not show blue and another example, Purple on the one half but red on the side that doesnt show blue. HELP!

Question by TallinW 2 years ago  |  last reply 1 year ago


led strip needing help :D

Ok so I saw some of those led tube sorta deals that are in a plastic tube. i figured that i could make some for cheaper and better i have soldered before and have some knowledge of electrical circuts but have never made anyhing that plugs into a wall ive made it all either for a computer or battery powered. i was wondering weathere i would need anything special to connect it to a wall

Topic by prailone 9 years ago  |  last reply 9 years ago


Walking/Marquee effect for LED Strip

I'm trying to achieve a "walking-type" effect also called marquee-effect using individually wired LEDs, so that it seems the lights are moving from one end to the other. Here's a video for reference: https://www.youtube.com/watch?v=p4g2NFQps1g It is easy enough if we have repetition every 3 LEDs. But my restriction is that I have repetition every 2 LEDs. The circuit is something like the one in the diagram(pardon my MS Paint skills): Every other RGB LED is connected together.  One simple way to provide the effect is to show color1 in LEDs at odd position and color2 in LEDs at even positions and then switch them. This is different from a similar effect in cheap fairy lights as I can set the color and intensity of the LEDs besides just on/off... Here is a GIF of my attempt of simple color switching with an addressable LED strip for now: In this, I cannot set any direction of travel and the effect depends on using a bit of imagination... Although it might seem difficult to provide a good effect with just 2 color channels, I want an opinion if it is possible or not?

Topic by Antzy Carmasaic 4 years ago  |  last reply 4 years ago


RGB LED strip help

Hi guys so i'm buying a 5050 rgb led strip and i'm connecting it to my arduino UNO so my question is can the arduino power 2 meters long led strip

Topic by OmarB8 3 years ago  |  last reply 3 years ago


Controlling LED Strips in Parallel

I'm working on a project with LED strips Namely, these ones using a LPD8806 PWM. I'm using these because I really want the ability to assign each light individually. I was hoping I could hook up an Arduino to do the controlling. My problem is that I need to cut the strip into smaller sections, and then use the sections in different places. I could conceivably wire each smaller section of the strip to the next in series, but it would be easier to just run separate sets of wires to each and have a parallel set up. I'm just concerned that if I do this, the Arduino may not be able to still control each light individually. Thanks for any help! I gotz ta have my color-changing LEDs!

Topic by SteamEngenius 6 years ago  |  last reply 6 years ago


running LED strip on ac

So i started working on a new project with RGB LED strips and I needed a power source, I dug around my box full of wall warts and saw one that said 12v 3000mA and thought ''perfect!''. I never hit the wires with my multimeter, just used a spare chunk of led strip to figure out polarity.. Anyway, plugged a line into my strip and into my LM7805 and blew my voltage regulator, only then did I look at the power supply and notice it was 12v AC! So to my question (sorry for the long winded intro) How are my LEDs working with AC power?? I switched the leads and they turn on with either line attached, so its obviously alternating, but how could these turn on at all?

Topic by emikayee 5 years ago  |  last reply 5 years ago


reusing LCD LED strips

I have just cannibalized an LCD (B156XW02) I managed to save the LED strip and the control board that it attaches to. was kinda wondering how to reuse the LEDS on this strip. any ideas?

Topic by Revolverkiller 6 years ago  |  last reply 6 years ago


Battery Powered LED Strip

Hi, I have one 6V Alkaline Battery (or two 3V Coin cell battery) that i am using to light a fairy LED strip (see here). I'd like to know for how long the battery will last me for. Can you please direct me what parameters I need to collect for the battery (or the LEDs) and what equations i will be using to determine the operating time of the battery. Thank you for your support in advance, Regards,

Topic by Greensal 4 years ago  |  last reply 4 years ago


RGB LED Strip matrix?

Can I use connected RGB L.E.D. strips in rows to make a animate-able matrix? And what program do I use to animate it? I'm working on making a deadmau5 mask that lights up, so it has to be a portable unit as I would like to wear it to shows. Thanks :)?

Question by downhillwondrboy13 6 years ago  |  last reply 5 years ago


Testing LED light strips

More questions regarding this: https://www.instructables.com/id/How-to-make-a-super-bright-LED-light-panel-for-vid/ I've added my 30 led strips and have soldered them in place.  The video says it's a good idea to test your strips at this point by connecting them to a power source. I presume it means to connect the two paired wires on the back of the panel to a power source.  However, I don't know electronics so I'm not sure how to do this. I have a 12v AC adapter as well as some other power adapters from old laptops.  How do I connect this to the wires? Is there a link to an existing instructable that might explain this for a newbie? Videomom

Topic by mazelady 3 years ago  |  last reply 3 years ago


[vid] Addressable led strips

Greetings; I just finally got my sparkfun led strips working with the fastSPI code posted by Daniel Garcia. Not enough info to post an instructable yet -- What projects would you want to see done with this? I was using just bitbanging to make the arduino spit out the animations in software serial, and it was brutal hard on the processor -- barely had enough cpu to shift out the data, let alone calculate the animation.  Special thanks to the fastSPI code I found the hardware serial can do all the communication work and the processor can concentrate on animating. I will be posting a full ible but need more ideas! From my vid description: Got 64 RGB leds wired up using only 2 spi communicaton wires in excess of 100fps leaving tonnes of cpu overhead room for calculating the animation. *(I have to use delays to slow down the animation or its too fast to see with the eye, let alone capture with a camera) Strip: http://www.sparkfun.com/products/10312 (x2) Waterproof self-adhesive rgb addressable strips. INSANELY bright for 5050 leds. at full white 2 strips draws just under 2 amps/5 volts, they get a bit warm but nothing serious. uC: Arduino mega 1280; I found my duemilenove didn't have the storage capacity for this program. Anything 'uno' or better should do. Library: http://code.google.com/p/fastspi/ Special thanks to Daniel for writing his amazing library. Has support for many types of led strips and absolutely destroys software serial for getting the data out! This is the sample animation that comes with the library to get you started. It took just a bit of tweaking the software and wiring to get it working. Planned projects: Ambilight for computer Midi drum/keyboard visualizer Random party light/vu meter suggestions?

Topic by frollard 7 years ago  |  last reply 7 years ago


LED STRIP HELP PLEASE!

Hi there, I recently bought a tri-color addressable LED strip at RadioShack. I've already tested it with the provided code through the Arduino IDE. Now how would I be able to make my own light display through Arduino. Will programming it be the same as programing any other LEDs? I want to make an LED show on my small Disney Castle model. The strip is long enough to illuminate the entire model. I want to make a show like this (ignore the fireworks, just focusing on the light effect) : PART 1      http://www.youtube.com/watch?v=EAYm_utWGug  PART 2      http://www.youtube.com/watch?v=K0f7Sa0h8LY Provided code for Tri-Color Strip RadioShack: http://www.radioshack.com/product/index.jsp?productId=16306856 Thank you in advance!

Topic by ray33_ 5 years ago  |  last reply 5 years ago


RGB LED strip quiestion :)

Hi everybody, I saw a tutorial on how to make led light-bulb , https://www.instructables.com/id/21-W-Led-Bulb-1450-Lumens/ , this one. I have a led strip which i can use, the only problem , the strip is RGB , and i want it to give of white light. i don't have a controller for them, and i don't really want to use one. So my question is : can i wire them in some way to give of white light ? Thanks.

Topic by maniak.loop 4 years ago  |  last reply 4 years ago


can I connect pre-kit led strip to a battery wired led strip (see pic)?

Connecting a led kit (white strip) to battery pack (black strip) but am I stripping end both black and white to make it happen. Or way to make black same as white?  Is there an easy way to do this?  Thanks in advance.

Question by tamsee13 4 years ago  |  last reply 4 years ago


I posed a question about an LED strip problem I am having (probably in the wrong place)

See the link where I posted the details.... sorry for the double post. https://www.instructables.com/id/LEDs-for-Beginners/#previewlink

Question by MindsEye69 8 years ago  |  last reply 8 years ago


Can I power a 300 led strip of 5630 led's with 8 AA batteries? The led's are controlled by an RF remote.

IF 8 aa batteries do not supply enough current, should I go with 2 or 3 groups of 8 in parallel? Or do I need to use 8 C batteries, or 8 D batteries, or possibly 2 6 volt lantern batteries.

Question by kingtrout1 3 years ago  |  last reply 3 years ago


SMD Led's

I have just purchased SMD LED's from China. They come on a strip. How do I remove them from the strip to use them individually?

Topic by epf321 3 years ago  |  last reply 3 years ago


How to control LED strips with 30W LED?

I have several 12V RGB LED strips that I want to mimic a 30W RGB LED. The remote controlled driver outputs 24-32V to the high power LED. Can I just use a transistor/MOSFET? An drawing and product numbers would be cool, or even better a brief explaination of calculations for transistors/mosfets and the associated resistors so I don't have to bother the community with this seemingly simple question.  Would it be possible to use a simple voltage divider to lower the 32V signal to 12V or less to connect to the base of a transistor?

Question by bobrigewitch 7 years ago  |  last reply 7 years ago


Help with powering chained LED strips?

It's been about 30 years since I had any formal training in wiring circuits, so excuse my ignorance.   I am trying to chain a couple of addressable LED strips.   The strips have the following requirements: Power consumption: 10W/M Length: 5m Voltage: DC5V So it's 50W for the length of one 5m strip.    I'm considering chaining two or more strips together.   The data chain can be as long as it needs to be, but the the manufacturer recommends powering strips every 5m.     Let's say I have a 5v 60A (300W) DC power supply.   Can I run multiple strips (I guess up to six 5m strips) with this wired in parallel, or do I need to worry about putting resistors in to keep it from overloading the strips?    Here's a quick sketch diagram

Question by reverendpete 6 years ago  |  last reply 6 years ago


Outdoor RGB LED Strip Failure

Hi all,  I've had quite a modest installation of RGB LED tape (45 meters ish, split into more manageable circuits) around the perimeter of my decking. This uses the commonly available 5050 RGB LED Strip light, the type with the epoxy covering the tape and also an outer sheath to protect it from water ingress.  I had heat shrinked the ends and also applied multiple layers of liquid electrical tape where a connection to a 4-core cable was needed. This has held up well for some time.  After about 2 years, I noticed that some of my RGB LED tape runs were sort of 'corrupting' where a small amount of moisture had got in, and shorted the RGB channels so that no matter what I feed into the tape, it always output white (or some other combinations or colours). Still, I ignored this, as it didn;t bother me too much.  These ran back to a central controller, which did the DMX control and amplification of the 12v single.  Anyway, to cut a long story short: Yesterday I smelt smoke.  I was walking around the garden and I noticed that one of the strips had caught fire, at a single point in the middle, and was burning a hole through my decking!  Again, long story cut short, I put this fire out and looked closer. The strip was so badly burnt that I can't determine what went wrong here.  I'm thinking maybe a resistor burnt out and caught fire? The tape has been running 'on' for quite some time (weeks) so this is a possibility.  Another possibility is that there could have been a short between 12v and ground, which caused heat. Now, there aren't any fuses on the 12v rail (fuse and circuit breaker protecting the 240v side) but I wouldn't have thought that this would protect me from a fire anyway!  I'm interested whether anyone else has had a similar experience or has any suggestions as to why this has happened.  I love these RGB LED strips, use them a lot in my house, but after seeing this, I'm not a little more dubious to keep using them.  I'm an electrical engineer (in the making, at University) and this has stumped me!  Thanks Joe

Topic by joearkay 2 years ago  |  last reply 2 years ago


4x questions about SMD LEDs.? Answered

Hi ... I would like to ask : 1. how many SMD LEDs I can power from USB (in general) 2. would and USB port handle 90 of these (uk.farnell.com/avago-technologies/hsms-c191/led-smd-he-red/dp/1058373) LEDs ??? 3. Would you rather buy 2pcs of these LED STRIPS (cgi.ebay.com/45-SMD-White-LED-Strip-Lights-Lamp-Waterproof-Flexible_W0QQitemZ370324943281QQcmdZViewItemQQptZLH_DefaultDomain_0) to get the 90 pcs ??? 4. Could I power these 90 SMD LEDs from the strip by USB (after modifying it...'cose its for 12 volts). Thank you in advance, for your answers. Zholy

Question by zholy 9 years ago  |  last reply 9 years ago


Can I connect 4 LED strips to 9V cell phone power supply ?

I don't know specifications of the LED strips all I know is that they are 12V, 30 cm long, supposed to be waterproof and they are blue light. I've connected 4 LEDs in parallel to a 9V cell phone power supply with 200mA output...when i plug this whole assembly in it works - they all light up...how log will they last? From what i've read it seems to me that my power supply might not have enough wattage. Is the power supply going to die because not enough wattage or something will happen to the LEDs?

Question by tatis888 5 years ago  |  last reply 5 years ago


Can I wire 2 LED strip lights with separate switches onto my PC? Answered

Hi.  I installed 2 LED strips in parallel to a molex connector (Pic A) in my PC case.  Now, I would like to add separate switches for each strip. Can I do it as depicted in Pic B? Is it possible and safe to supply them with only 5v? *The LED strips are both 12v 3528 LEDs (blue & white).  However, I do not know the current nor power requirements of the strips. Thank you.

Question by HopeF12 2 years ago  |  last reply 2 years ago


What is the best way to power an LED strip? Answered

I am looking into purchasing some LED strips for a project, but I don't know how to power the LED strip.  For example: This LED Strip needs 24 VDC, but what would be the best way to supply this?  Would I use an outlet?  Are there batteries for this type of thing? Thanks for your help.

Question by Brennn10 9 years ago  |  last reply 3 years ago


LED Strip lighting.(current rating question)

Hi I want to install RGB LED Strip and a sound activated controller to make them flash with music in my room. i want to know that if LED Type (3528) 15m strip will run on the sound controller (link given below)? If yes then which power supply will i have to use to power them up?  As far as i know we hve to use 12v 6a power supply for 15m LED Strip. and this sound controller need only 2a. will it burn the controller if we put 6a or 12v 2a will b fine? LED Strip:  http://www.aliexpress.com/item/5m-300-LED-3528-SMD-12V-flexible-light-60-led-m-LED-Strip-Light-white-warm/1944353158.html?spm=2114.30010308.3.1.n2vARj&ws;_ab_test=searchweb201556_6,searchweb201602_3_10036_10035_301_10034_10033_507_10032_10020_9912_10017_10005_10006_10021_10022_401_10018_10019_2020014,searchweb201603_9&btsid;=d80d8c75-095f-4af1-a5dd-64091b8c69a5 Sound Controller: http://www.aliexpress.com/item/New-20-Key-Music-IR-Controller-Black-Sound-Sensor-Remote-For-RGB-LED-Strip-High-Quality/32641647397.html?spm=2114.13010208.99999999.279.eIlE8o

Topic by FaisalZ1 3 years ago  |  last reply 3 years ago


How do I power an LED light strip? Answered

Hello, I just purchased an LED light strip from Amazon: Triangle Bulbs 3528-IP65-White-60L Pure White LED Strip Light, Waterproof LED Flexible Light Strip 12V with 300 SMD LED 12 VDC Super bright Waterproof Cool White 3528 SMD LED strip     Length:16.4 ft./5 Meter 300 LED lights per reel. Allowable cut every 3 LED lights     Easy and flexible installation. Ideal for home and business lighting decoration.     Comes with 3M adhesive sticky backing     High brightness, wide angle LED chip. Low power consumption - Only 4.8W/m LIfe: 50,000 hours I already have a 12V DC 2A battery pack. (it holds 8 AA Batteries). What else do I need to complete the circuit?  I am thinking I need some sort of on/off switch, but have no idea what I need to buy.  Thanks!!!!

Question by KaleiS 4 years ago  |  last reply 3 years ago


Can these led strips be made to work off batteries?

These led light strips look awesome. My question is can these be made to work off a battery system that would be portable enough to carry while roller skating. Here is the site of the product http://www.oznium.com/thin-led-strip I did post this on the end of an old question but not exactly sure people would see it at the end. Thanks for any suggestions

Topic by rsfaze 11 years ago  |  last reply 7 years ago


Arduino Controlled LED "Aircraft Runway" lights?

Excuse me Please: I have a project with a specific need, which I "think" an Arduino and LED strips can meet. The effect I would like is to have the LEDs all dimly lit, and have a single/few run along the length of the strip with increased brightness and returning to the dim intensity once past. think: aircraft runway lights. also, which I think may overly complicate the project, I need like ten strips all running concurrently, each with singular/few brighter LEDs running the length and randomly repeating. does what I explain make sense?

Topic by Ceyarrecks 2 years ago  |  last reply 2 years ago


LED Strip connected to car 12v port and isn't lighting up?

So i bought an LED strip which was rated at 12V, i connected it to the wall and they lit up, i then got a car charger which was 12V and wired it up, and they don't light up. The car charger itself has its indicator LED glowing and i checked with a voltmeter that it was supplying the 12V. I cannot seem to figure out for the life of me why they aren't lighting up? Any ideas?

Question by marcelrees 2 years ago  |  last reply 2 years ago


led to music? Answered

Ok... i have been looking into this for the past month tried to use a TIP31 transistor to make my led light strips flash to music in my car by using my sub amplifier as an audio out source...... and it would not work so i was wondering if you someone could help me out to make a box that would allow for audio in from my amplifier that would have a circuit that would perform the task of making my led light strips flash to my music. thanks. 

Question by dallyski 6 years ago  |  last reply 6 years ago


LED Diffusion

I am using a flexible LED strip to illuminate some leaves on a lotus leaf for our art car. The leaves are made out of bent tubing which is then covered in fabric. The issue I am having is getting the light diffused across the surface. These photos show the issue and in actuality it's not as bad as the photo make it look. I'm wondering what tricks people have for getting diffusion. I have use backlight film in the past when having a panel of LEDs but this strip follows the contour of my shape. Any thoughts? Cheers. Phil

Topic by filthyPhil 5 years ago  |  last reply 5 years ago


Help with battery powering 5m 12v LED strip Answered

So its Halloween time again and I decided to up the ante this year and make the Tron robe Jeff wears from the new movie. Costumes are nothing new to me, but I have almost no electrical skill. I've been googling and searching forums, but all the cases differ from mine, and I want to be 100% certain about my set up. So first off, I have 5m of 12v Leds from here.      http://www.amazon.com/gp/product/B0085UPTT4/ref=oh_details_o01_s00_i00 I would like to battery power them for at least 2 hours at a time minimum, and I was considering splitting the strip into two 2.5 strips and putting a battery pack on each. But I know nothing about electricity and math has never been my strong suite for figuring amps and whatnot. I've heard that I will need a resistor and batteries weighing pounds to run just a few hours! Help would be greatly appreciated.

Question by 7poiNt 6 years ago  |  last reply 6 years ago


Connect three LED strips to AC

I have 3 led strips using 3 AA batteries each. The easy way would be to use dummy batteries and three separate 4.5v adapters. The ideal would be to connect them all together somehow and use only 1 adapter, maybe a 13.5v? Am on the right track here?

Topic by dmalamatenios 5 years ago  |  last reply 5 years ago


LED strip light wire issue

Hello everyone. Sorry for no diagram, but all multi color led strips are all pretty similar, 4 contact points at each cut point. A year ago I bought a 5 meter roll of LED lights. The RGB ones with a 14 button remote, 3m backing, and covered by a jell. Yesterday I bought another 5 meter roll to wire up with my old roll, as the controller (little white box that the 12V plugs into and has the IR reciever) came with leads to connect 2 strips. I plugged them in and they didn't work. So i got out my multi meter and tested my old controller and the new one. and the results came back opposite. One controller, I needed the red pin from the multi meter on the +12V line and the black to go on each color to show 12V. The second, I needed the black pin on the +12V line and the red on the colors to show 12V. So to me it looks like one sends the 12V up the +12V rail and back down the the RGB. While the other is sending 12V up each of the RGB and back down the +12V rail. The led strips that belong to each controller are wired the same. so they don't plug and play. So my question is, Is there a way to get these LED strips to work with one another or will they have to be run on 2 separate systems. Thanks in advance Ross

Topic by bo0mm 6 years ago  |  last reply 6 years ago