recommendation for LED brightness? Answered

I am making an LED suit that has to be visible in low-light environments, like night or in a cave. (fog, smog, and rain not taken into account) any recommendations for a good brightness? how many lumens? it has to be visible so a car can see the wearer of the LED clothing, so the wearer doesn't get hit.

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


adjusting brightness in you tube

Is there a way to adjust brightness in you tube videos

Topic by pops1943 10 years ago  |  last reply 8 years ago


Code for controlling the brightness of LED using Bluetooth module HC-05-v1.0?

I am using arduino ATmega328 micro-controller. i tried some analog coding to control the brightness via Bluetooth module but the output value of the LED is constant. The code I used is, int ledPin = 5;  int fadeValue = 0; void setup() {     pinMode(ledPin,OUTPUT);     Serial.begin(9600);     delay(100); } void loop() {   // fade in from min to max in increments of 5 points:     if (Serial.available() > 0)     {            fadeValue = (int) Serial.read();            Serial.println(fadeValue-48);            for(int i=0;i<=fadeValue;i+=5)                analogWrite(ledPin, i);                    } }

Question by santhoshpl3 4 years ago  |  last reply 4 years ago


quick question about LED brightness?

How bright is a 3500 mcd LED? I was planning on using 4 3500 mcd LEDs for a bicycle brake light project, but now I'm thinking that it might not be bright enough. Being as this is my first LED project, I'm not too sure how bright 3500 mcd is relative to others. I'd imagine it would be sufficient, but after lighting one with a 1.5 volt battery, I was kinda disappointed.If there is a mcd rating that is better for this application please sharethanks for your input

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


Wiring 10w leds to 12 volts

OK, I have some 10 watt - appr. 900 lumen leds that I want to use for a video room.  I have low voltage wiring in the walls and have a 12 volt 96 watt dimmer that I plan to power with a deep cycle 12 volt battery.  The leds are 3.4 - 3.6 forward voltage and 350ma.  I want to use 3 of these on each side of the room and was just hoping to get away with wiring each side in series and then connecting both sides to the dimmer. Am I looking for trouble wiring them directly without any resistors?  I really don't want to get into resistors, etc. if possible. Thanks in advance for any thoughts and suggestions. 

Topic by jagmanjoe 8 years ago  |  last reply 6 years ago


Using an ATtiny to control LED brightness?

Hey guys, I was wondering if any of you know how to control LED brightness using an AVR microcontroller. I'm using the ATtiny 2313... I was guessing that there is some way to do it using PWM, but I have no clue how to do so. Any help at all is appreciated! Thanks, -Muffinator

Topic by T3h_Muffinator 11 years ago  |  last reply 5 years ago


Super Bright Night Light

Who makes the brightest night light?

Question by 9 years ago


how to control brightness of an led?

I want to design a controller so that i can control the light of led tube light. can anyone suggest me  how and where to start. THANKING YOU

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


Boost converter LED brightness?

Will a boost converter IC (such as the one from maxim) ever be able to power a high power LED as brightly as when the LED is powered with a constant current source?

Question by .Unknown. 8 years ago  |  last reply 8 years ago


how to get an LED extremely bright?

Just wondering how I can make a regular LED to become more bright, or if I have to change the light. The battery is 3v, and it says that the LED's max is 5v.

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


Super Bright Blue LED Driver Answered

I was about to start a project when I got stumped. I need advice on what driver circuit would be best to drive 10-20 super bright blue LEDs off of batteries. Thanks for the help. P.S. If you need me to specify anything (which you probably will) just ask :)

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


My joule thief is not very bright? Answered

My joule thief is not very bright? I've changed the windings, transistor and the resistor; and it is still pretty dim. Help please Parts: 2 different size toroids: Large and Small 3 Transistors: 2n2222, 2n3904, 2n5830 2 Resistors: 1k, 2.2ohm blue led white led with a heatsink Also I used a 20awg and 36awg to make the toroids

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


What is this bright yellow growth on this log? Answered

No camera editing of any sort (no contrast or anything: it's really that brilliant Big Bird yellow). Found it in the woods here in Northern Vermont. What is it? It looks so cool, doesn't it? Photos taken summer '08.

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


Use my webcam to adjust screen brightness automatically for my windows computer. Answered

I have done a few google searches as well as some searching through instructables and have not found anything concrete about the application. There are apps that dim based on time of day (like Flux) but here in Florida, especially in the rainy season, it can get dark really quickly. There are a few apps for linux but my many forays into linux end up with me getting frustrated and removing the partition. I'm new to Instructables, but in the short time I have been a member I have seen that this site is undeniably the best on the web. If there were anywhere I would find what I'm looking for, it would be here. I have found a few interesting links: 1) Ambient Light sensors (ALS) are supported in windows 7: http://msdn.microsoft.com/en-us/windows/hardware/gg463470 2) A video by a Microsoft program lead back in 2008: Building Context Aware Applications: http://channel9.msdn.com/blogs/pdc2008/pc25 3) Here is a proof of concept for a contest. Someone has actually made a simple app. Unfortunately, it is constantly running and the UI is command line: http://sven.killig.de/BLUntrl/. It is hard to understand him as he seems to go in between German and English. I wish I knew how to program cause I would probably change the code and create a better UI. The best route to save power would probably to have the computer check every 10-15 mins or more (maybe even user selectable). So guys what do you think?

Question by tbrooks1 7 years ago  |  last reply 4 years ago


Is 6000 mcd to bright for a blue led cube?

 Im making my own Arduino based led cube, and was wondering if 6000 mcd is to bright for this project.

Question by Jehrets2 9 years ago  |  last reply 9 years ago


How Bright is a 112 Lm/W LED? Answered

Hello, I am on a mission to find a very very bright led preferably in red. I have seen lots of bulbs with ranging prices but don't understand how bright they are. One led I have seen is the Luxeon Rebel LXM5-PD01 which comes in red and is 112 Lm/W, I understand that it means 112 lumens per watt but how bright actually is that? And what would be its power consumption? Thanks

Question by Boba Jett 3 years ago  |  last reply 3 years ago


Super Bright Light for Nighttime Video Capture

Introducing the ProdMod Night Vlogger 160!Michael from ProdMod designed a high powered version of his photo light using a Luxeon LED with heatsink - The following project is a neat way to make your own high powered video light to attach to your digital camera or camcorder. I called it the NightVlogger 160 after I read the term on this article of someone willing to use this type of light to allow him to take paparrazi style video at night. At 160 lumen it is very bright and fits in a slim AAA battery holder using only 3 batteries.Make your own or buy the kit.Check out the facts at ProdMod.Then use it to film your Halloween shennanigans and post them here!via: MAKE

Topic by scoochmaroo 10 years ago


Wanted circuit diagram to increase brightness bike headlight?

Wanted circuit diagram to increase brightness bike headlight, details 12v dynamo, 135cc?

Question by dom83 9 years ago  |  last reply 8 years ago


220V AC 16 LED ultra bright chaser?

I would like to add LED chaser to this schematic with time delay 400 nanosecond use ne555 and IC 4017. Thanks for the help datasheet for LED ultra bright : 3.5V, 25mA (maks), 12000 mcd?

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


Any bright ideas about an alternative source of electricity?

Fossil fuels are depleting, thermal power plants barely provide sufficient electricity. A new era has come, an era of science and technology. As we advance our knowledge, we need to fuel our needs. Think about a world without electricity, how will it be? So, why don't we put together our grey matters, and think about an ultimate solution?

Topic by S0uraV_DAS 4 years ago  |  last reply 4 years ago


easily viewable cheap LCD in bright glaring sunlight?

I recently bought the cheapest screen I could on amazon for around 20 or so dollars for use on my quadcopter, it is a really crap quality display (only 480 x 272 resolution, and very poor color reproduction, viewing angles, and contrast) but it does serve the purpose of a FPV display for my quadcopter. However, I remember my old faithful flip mino camera as well as my old palm centro phone which had some type of semi-reflective LCDs on them! The displays could easily be seen in direct sunlight even with the brightness set to the minimum! They seemed to work a bit like calculator LCD displays, where they work on a basis of reflection, but also have backlights in them. To verify that the display on that flip camera does indeed reflect light back, I charged it up and turned it on with my 2000 lumen LED torch shining directly at it. images on my GS3's AMOLED panel would only be visible with the brightness cranked wayyyy up, and similarly on most LCD displays. They just could not handle the same way the flip camera did! You could clearly make out a picture on the flip camera display even when it was charging and the backlight was 100% off! What would I be searching for to find a display with a composite video input capible of being viewable in direct sunlight like this? Might it be possible to modify my current LCD to make it more viewable in direct sunlight?

Question by -max- 3 years ago  |  last reply 2 years ago


5w Square Bright-White LED : Glow or Blow…??

Q: Glow or Blow…? Dear Friends…„ I dont know more about electronic and its power supply/consumption of electronic component. Recently, I seen and bought two components… (1) 5w LED (Square/White)  - Requires 9v ~ 12v DC (2) 1 Circuit Board (Readymade) Open LED Driver This Board has : 1x 474K 450v Polypropylene Capacitor 1x 1m Resistor 4x 1N4007 Diode Bridge 1x 100Ohm Resistor 1x 6.8uF Electrolytic Capacitor Nicely assembled. Open LED Driver run on main AC power of 230v. I havent test, connect and glows this 5w LED using this open board. I have tested this LED with 12v 2A LED-Driver…„ which was bought with LED-Strip at Diwali Festival…„ but with this 2A Driver this 5w LED only blinks not continuous glowing. I am confused…„ about this Open LED Driver…„ this my LED "Glow or Blow…?" I saw and design a circuit from this open driver…„ and sharing this with you hon'ble/s friends. Please Advice…

Topic by free2atc 2 years ago


Request for a design of a bright solar-powered yardlight with LEDs.

We live in a neighborhood without street lights.  Each homeowner is required have a automatic light on a pole in the middle of the front yard.  These lights are powered by a 120 volt line running underground.  These lights are constantly failing because of the shoddy way they laid the line just under the sod.  My solution was to replace the light head with a solar light fixture that I purchased from Menards for $68.  It has 12 LEDs, small solar panels on top facing in four directions, and interior mirrors to enhance the reflection.  The problem is that it is barely adequate.  I would have preferred to use the old fixture and outfit it with a brighter set of LEDs.  It would be great if someone could come up with a simple plan for something like this. I would like to have 24 LEDs (I could cannibalize these from an LED flashlight), a chain of small solar panels taken from solar yardlights, rechargeable batteries, and a compact circuit that would sense darkness (possible reused from a yardlight).  I will worry about mounting the solar panels outside the fixture.  Note: this cannot be an 'accent light'.  It should have the output of at least a 20 watt incandescent bulb). 

Question by rhackenb 9 years ago  |  last reply 8 years ago


How can i adjust the brightness on the arduino lol 9x14 matrix sheild? Answered

The other day I recently bought the lol white smd matrix shield for Arduino it to me minutes to set up, and then I wanted to adjust the brightness as it was too bright would be good to set the brighness with a pot or buttons so I turn the pot and it adjusts the brightness or press a button to change the brightness thanks for help. (Beginner in arduino not quite got my head around the programming yet.)

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


Sequential Loops for Pin Activation?

Hi, I am starting with Arduino and I am in need of some help. I am trying to sequentially activate 5 pins. I need each pin to be active for 20 seconds in a PWM manner. During their active period I want an arduino sensor to read out the signals emmited by each pin effector. So far I have no problems with the PWM or sensing module code. However I am not able to find how to correctly sequentially activate the pins. I used millis(), etc, but so far I was able to only activate / read the signals from the first pin effector. The sketch doesn´t proceed to the 2nd --- pins. I really very much appreciate your help....Here goes the code so far... const int greenPin = 11; const int redPin = 10; const int irPin = 5; const int bluePin = 6; const int yellowPin = 9; const int outputLDR = 12; const int ldrSensor = A0; int brightness = 0; int increment = 1; int readingoutputLDR = 0; void setup() {   pinMode(greenPin, OUTPUT);   pinMode(redPin, OUTPUT);   pinMode(irPin, OUTPUT);   pinMode(bluePin, OUTPUT);   pinMode(yellowPin, OUTPUT);   Serial.begin(9600);     setup_parallax(); } void loop() { digitalWrite(outputLDR, HIGH); readingoutputLDR = analogRead(ldrSensor); while (millis()<5000)                 {                                       if(brightness > 255)                    {                     increment = -1; // count down after reaching 255                    }                    else if(brightness < 1)                    {                    increment = 1; // count up after dropping back down to 0                    }                    brightness = brightness + increment;                                                        analogWrite(greenPin, brightness); digitalWrite(redPin, LOW); digitalWrite(irPin, LOW); digitalWrite(bluePin, LOW); digitalWrite(yellowPin, LOW);                    Serial.print("Reading Green"); parallax_output();                                     } delay(1); while (millis()<5000)                 {                                       if(brightness > 255)                    {                     increment = -1; // count down after reaching 255                    }                    else if(brightness < 1)                    {                    increment = 1; // count up after dropping back down to 0                    }                    brightness = brightness + increment;                    delay(1);                    digitalWrite(greenPin, LOW); analogWrite(redPin, brightness); digitalWrite(irPin, LOW); digitalWrite(bluePin, LOW); digitalWrite(yellowPin, LOW);                   Serial.print("Reading Red"); parallax_output();                                  }   while (millis()<5000)                 {                                       if(brightness > 255)                    {                     increment = -1; // count down after reaching 255                    }                    else if(brightness < 1)                    {                    increment = 1; // count up after dropping back down to 0                    }                    brightness = brightness + increment;                    delay(1);                    digitalWrite(greenPin, LOW); digitalWrite(redPin, LOW); analogWrite(irPin, brightness); digitalWrite(bluePin, LOW); digitalWrite(yellowPin, LOW);                     Serial.print("Reading IR"); parallax_output();                                  } while (millis()<5000)                 {                                       if(brightness > 255)                    {                     increment = -1; // count down after reaching 255                    }                    else if(brightness < 1)                    {                    increment = 1; // count up after dropping back down to 0                    }                    brightness = brightness + increment;                    delay(1);                    digitalWrite(greenPin, LOW); digitalWrite(redPin, LOW); digitalWrite(irPin, LOW); analogWrite(bluePin, brightness); digitalWrite(yellowPin, LOW);                    Serial.print("Reading Blue"); parallax_output();                                  } while (millis()<5000)                 {                                       if(brightness > 255)                    {                     increment = -1; // count down after reaching 255                    }                    else if(brightness < 1)                    {                    increment = 1; // count up after dropping back down to 0                    }                    brightness = brightness + increment;                    delay(1);                    digitalWrite(greenPin, LOW); digitalWrite(redPin, LOW); digitalWrite(irPin, LOW); digitalWrite(bluePin, LOW); analogWrite(yellowPin, brightness);                   Serial.print("Reading Yellow"); parallax_output();                                  } } void parallax_output() {                    Serial.print("DATA,DATE,TIME,");                                                                Serial.println(readingoutputLDR);                    } void setup_parallax() {     Serial.println("CLEARDATA");     Serial.println("LABEL,Date,Time,Green Response, Red Response, IR Response, Blue Response, Yellow Response"); }

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


Looking for a schematic for a bright, LED, solar powered, outdoor light?

Hello,  I am looking to make a pretty bright, solar powered light, for use in the yard.  I have a very bright, 3 LED flashlight, that uses 3 AAA batteries.  I would like to make a light for the yard that has 2, or or more LEDS to light the sidewalk. Any assistance would be appreciated.

Question by Big Pics By Steve 9 years ago  |  last reply 9 years ago


Where can I buy VERY BRIGHT white 0603 LEDs?

I used to get my LEDs from Niktronix, but they changed their supplier and their 0603 LEDs just aren't bright enough anymore.  Does anybody know a good place to buy ones that are super bright (with a good viewing angle also)?  I want white, not colored.  And they need to work with a 3 volt battery without a resistor.  Thanks.

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


how do you build a lcd flashlight with variable brightness?

How do you build a lcd flashlight with variable brightness?

Question by 10 years ago  |  last reply 10 years ago


Arduino using solar panel?

Hey guys. Im trying to have a fading led that only turn on when there is no light sensed by a solar panel that would probably be attached to an Analog Input. I'm trying to figure it out but I just can't seem to find a way to make it work. I also need to figure out how I'm supposed to plug a solar panel into an arduino UNO since it is not like a battery and only has a + and - wire. Heres my program: int light = A0;    //light acivated part int led = 9;           // the pin that the LED is attached to int brightness = 0;    // how bright the LED is int fadeAmount = 5;    // how many points to fade the LED by // the setup routine runs once when you press reset: void setup()  {   // declare pin 9 to be an output:   pinMode(led, OUTPUT); } // the loop routine runs over and over again forever: void loop()  {     // if there is light, dont run code   if(analogRead(light) == 0){     // set the brightness of pin 9:   analogWrite(led, brightness);      // change the brightness for next time through the loop:   brightness = brightness + fadeAmount;   // reverse the direction of the fading at the ends of the fade:   if (brightness == 0 || brightness == 255) {     fadeAmount = -fadeAmount ;   }       // wait for 30 milliseconds to see the dimming effect      delay(60); }    }

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


Can I use a x-ray film instead of neutral density filter for photography?

To dim very bright objects such as sun

Question by 9 years ago  |  last reply 9 years ago


How many white leds(super bright white leds) would I need to produce the same brightness as a 60w, 240V spotlight bulb.

I have a standard lamp that uses two separate 60w, 240v filament spotlight bulbs. What I want to do is convert it to using white leds or super bright white leds- one led disc to replace a bulb. What i need to know is: how many leds of this sort I would need to use on one led disk to produce the same amount of light as one of the above bulbs.

Question by mdog93 9 years ago  |  last reply 7 years ago


How to add more brightness to my current LED circuit? Answered

Hi everyone, Which component should i use to boost up the brightness of my circuit. I'm using this my circuit as my "moon light" for my silver arowana. My circuit. I'm actually used the help ledcalc.com/#calc for my circuit. The power source for my circuit is 12v adapter ,500 mA, 50 hz and 13 VA (note, i don't want to change to a super bright led, preferred using my current led) Thank you. 

Question by yraj1 7 years ago  |  last reply 7 years ago


How many super bright white LEDs can be connected in series and in parallel to an Arduino pin?

I'd like to make an 8x8x8 LED cube with super bright white LEDs with the Arduino. I've thought of two ways to do this. I just want to know what my limitations are and if I should use red LEDs instead and what are the limitations on them? I'm using an Arduino Uno R3.

Question by steve.tofflemire 4 years ago  |  last reply 4 years ago



I see in new cars they have a very bright dome lights, Can I have those in my 95 volvo, is just change the light bulb?

Car dome bright light.   I see in many new cars that they have a very bright light in the roof ( dome ) to have these in my car is just to buy a light bulb and change it or something else? I have a '95 Volvo 850 glt., it has four lamps in the roof ( each with one light bulb)

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


GameBoy Advance overly saturated screen... How to fix? Answered

I got a GameBoy Advance a few years back, the Nintendo DS of last decade. It worked great for about a year and then (I think I may have dropped it) it started displaying the colors on the screen way too brightly! Nothing else was effected, but the screen looks as though it doesn't know what "dark" means. All of the games I try to play are way too lightly-colored, to the point that I can't see any details at all. As you can see, I try to play Frogger's Adventures: Temple of the Frog, but I can barely see where I'm going because the screen is too saturated. Oh, and another thing: After the screen started doing this, I dropped it once more, and it switched back to normal for a time, but then after 30 seconds, it flipped to the higher saturation again. This would lead me to thinking that something is broken inside... Is there anyone out there who knows of this problem, and perhaps, knows how to fix it? Thanks, Win Guy

Question by Win Guy 7 years ago  |  last reply 7 years ago


*****I NEED HELP WITH LEDS*****

THank you in advance! **PLEASE HELP ME!!!** I need BRIGHT white lighting for tailgate parties, Where can I go to get them, or order them. i can solder them to copper clad boards, but i need SUPER BRIGHT ONES!!! thank you!

Question by led235 9 years ago  |  last reply 9 years ago


How bright (and what colour) does a light have to be before it will distract / confuse / attract moths at night?

How bright does a light have to be before it will distract / confuse / attract moths at night? What is the best colour of light? Would "white" LEDs do the job, or would UV LEDs work better? How many?

Question by Kiteman 9 years ago  |  last reply 8 years ago


help: LED dimming via light sensor

I have been unsuccessful in finding a way to duplicate a "screen" with LED lights. where LEDs act like pixels.. whether a 10x10 layout or much more. and each of those LEDs have variable values of brightness. so thats the output... the input would ideally be video but i think im getting ahead of myself, so what about variable light sensors.. so if each sensor was attached to an LED, and if the sensor saw saw 50% brightness the LED would put out 50% brightness, dark sensor equals dark LED and bright light on the sensor meant bright output from the LED and as much in between as possible. any thoughts, opinions or suggestions? thanks, john.

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


I want to control LED bright/dim with push buttons. Can help?

Want to dim/ bright LED with two push buttons. PIC 12F675 and 16F628A will helpful to me. Thanks

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


Is it possible to vary the intensity of light/ brightness coming out of the tube light using any control mechanism?

What is the  mechanism that is to adopted to change the intensity/brightness coming out of tube light. Thank you in advance.

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


can anybody give circuit for LEDS slowly glowing to full brightness in sequence

I want three LEDS to glow one by one in a sequence glowing to full brightness and then dieing out 

Question by sanjay117 5 years ago  |  last reply 5 years ago


how to take pictures of bright LCD screen using digital pocket camera?

Hi guys, I'm trying to take pictures of a cellphone LCD screen using a pocket camera. I shoot directly to the screen but the result are always disappointing. It looks too bright and the the background becomes darker. I would really appreciated if anyone could post me a guide on how to do this. Best regards Hyaki

Question by hyaki 7 years ago


Would a 100 watt RGB led floodlight be as bright as a single color 100w?

I'm looking at high power colored flood lights, single color would be ok but the added flexibility of RGB would be great. I was wondering since color changing leds are made of three leds if I set it to blue would I get only a third of the brightness as the same wattage in single color blue?

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


how do I control brightness of RGB Led using PWM module

Hi,  I'm new to using Programming integrated circuit (PIC), I just acquired a PICKIT 3 made up of PIC18F45K20 Microcontroller. I'm need help understanding how to control brightness/ dimness of a RGB  led using PWM. The problem here is most tutorial I've come across only explain how to do this using one or more of the same type of led (same color). I need a tutorial explaining how to control brightness of red green and blue and whatever dimness state (say 20%) is, it remains in the same brightness when i pick a different color. if someone can direct me to a tutorial on how to configure RGB (not just LEDs) and using PWM. that would be much appreciated.

Topic by nigho4real 3 years ago  |  last reply 3 years ago


My CTX PR960F CRT monitor is too bright and colors are washed out. How can I repair it?

Its a CTX PR960F 19 FD Trinitron (0.24 mm). I know its old, but its a very nice monitor and still in daily use. Someone told me once on a forum that "... a bright and washed out display as you describe it means resistor "so and so" has a very high value...." and then he dissapeared without explaining where it is or how to replace it. This was like.. 3 years ago. Any help, greatly appreciated!

Question by blakeredfield 10 years ago  |  last reply 10 years ago


crt monitor image distortion

I have huge 21 inch crt monitor which i found yesterday in the trash i plugged it in now. it works but the image has some distortions the color that should be black is bright gray and all other colors are like addition to it. the image looks very bright and with bright gray tint. setting brightness and contrast to minimum does not help much there are some kinda scratch lines across the display. the lines form a shape of a 'lightning' with horizontal lines and diagonal that connect them. the density of lines is higher when i switch to higher resolution the image size is severely affected by the brightness of what is displayed. it grows larger about 1 cm on each side when i open a window with white background other than that the monitor works ok in all resolutions from the bios screen and up to 1600x1200 what can be the problem ?

Topic by 11010010110 10 years ago  |  last reply 10 years ago


identify terminals of a 4 terminal battery? Answered

I have an old mobile phone with a 4 terminal battery the end terminals are labelled "-" and "+" but the middle ones are labelled as "CF" alongside negative terminal and "VF" labelled alongside positive terminal. what do these two terms mean and why are they there? battery is 350mAh 3.7V battery. i dont have a multimeter but i checked the resistances between terminals (using an LED) as terminals                      LED brightness                                             Remarks + & -                          (more than normal brightness )                  no resistance + & VF                       ( normal brightness)                                     some resistance + &CF;                        (less bright )                                                   more resistance in the image from top to bottom alongside golden color terminals labelling is as -            (in picture as P-) CF VF +          (in picture as P+)

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


Problem with the Instructables Newsletter?

Is there a reason why my project: "SpectrumLED- An INSANELY Bright 200 WATT Variable Spectrum LED Panel" was featured in the newsletter as: "Insanely Bright LED Panel"? Is it because the name is too long? Or something else?

Topic by Yonatan24 3 years ago  |  last reply 2 years ago


How to make fuzzy raving boots?

They are fuzzy boots that have an elastics band that goes right below your knee and you wear them to go out raving. They are very colorful and Bright too. 

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