led

Attached are 2 photos of an L.E.D circuit. The tape is labeled 3v. However, when I tried to verify circuit voltage by sharing the image with Copilot, it kept telling me that it is labeled 5v. Is this an error on behalf of the AI system? If so, can anyone confirm that this circuit should be...

I need to make a LED setup for some lamps I'm making, I'm very new to electronics and would appreciate help! This is what I'm working with: (LED chipboard) Sanelec Mod.1322 lightbulb: 127V 60Hz 3W 47mA lm≥0 700fp Chipboard text: 120V5W D33MM XH-12266 L, N, BD, C1, U1, R1, R2 Inner chips...

Hi everyone, I’m looking for an LED light with the following specifications: Timer function (optional): Preferably a 6/18-hour timer (turns off after 6 hours and on again after 18). The timer is not essential, but would be nice to have. Power: Runs on 2x AA batteries. Size: Around 13 x 5 cm...

Hi All, I've attached a PCB layout I'm working on (minus the board itself). I set it up a funtional(?) version on a solderless breadboard first, BUT it doesn't work. I've been studing 555/4017 diagrams till I'm crosseyed and I can't figure out why... :confused: Thx, Joel

This is EK-04 a 4-channel LED decoration light controller how can i connect wires from it to power and LEDs ?

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I accidentally got the wrong RGB LEDs. They aren't controllable and have a preprogrammed way of flashing Is there any way I can still access the individual red green and blue diodes to control it myself, or would it not be worth trying? gif of the LED:

Hi everyone, I’m hoping for some help identifying and possibly adjusting the color temperature and dimmability of my bright white LED strip in my bathroom fixture to make it look less like a hospital. The lamp is an integrated fixture with a built-in LED strip. After opening it, I found the...

we need DC5V led strips for art works and need this exact led strips as i shown as this pic(60 leds per meter. single color without remote controler and without effects. that colors blue,red and yellow

I need help with how to wire an indictor light to signal when my dust collector motor is running. I attached the wiring diagram. There is a small LED on the circuit board, but the collector is in a small closet. I need to wire a light into my shop. Should I add an LED light in parallel to...

I have been recently working on a board which just breaks out a few switches and LEDs for easy soldering to a Raspberry Pi. There isn't much of a circuit, but I would like guidance if I chose suitable resistors, etc. I have two LEDs - APT2012LZGCK (2mA @ 2.65Vf - with a 330Ω res.) and an...

https://www.eia.gov/consumption/commercial/data/2018/ce/pdf/e5.pdf Hi everyone, I'm trying to interpret a table on electricity consumption in billion kilowatt-hours (kWh) by end use, specifically the row about LEDs (page 7). The table lists a total of 860 billion kWh for LEDs, but there are...

Hi everyone, I'm working on a project to make an LED that fades in and out (breathing effect) and operates on a 12V power source. I have the following components: 12v strip led 3x 3.7v batteries connected in series = 12v (with added extra voltage when fully charged resulting in 12v) BC547 NPN...

How can I find resistor values form voltage drop across the resistor I needed? 5V DC supply will get convenient into 2.3 V and goes GPIO of Controller and LED is connected to indicate the supply is on I want find value of resistor if the voltage drop is 1.9V and 0.7V for R1 and R2

Hi all, hi Ya’akov. My previous (relay mute) project is running nicely for 4 months now. Time for a new BMW project. This time, I want to add extra LED lights in the trunk. I thought there could be an easier way, instead of tapping into the trunk lighting switch and pulling wires into the...

Hi all, I have a question about the simplified circuit of the below image. It is about a 16x16 5V LED matrix, controlled via wifi by a controller board with an ESP 8266. I do have more details about all components used, but I try to keep my question simple. :) I can control the LED matrix by...

Hi All, I'm looking to have some input on a design for a simple output testing device. We install multiple machines that have variations of outputs, the outputs range from 12 v AC/DC to 230v AC/DC. I would like to create one box that has LED's to identify each output from the different...

I have this non-latching metal power switch with an LED inside, to light up the "power symbol" on the switch. I am currently looking after a circuit that can make this LED gently fade-in whenever power is connected to the circuit. The switch uses a "standard" (or "normal") LED. The...

Hello to those far more knowledgeable on the subject of electronics than I. I guess I'll tell you what I'm aiming for and go from there. Ideally, I've been wanting to create a led tachometer that at least resembles the one from a honda s2000, I'll include an image for reference, but to make it...

Hi everyone and thank you for your time, I am having a problem where on my car my position lights work only during night time if left on automatic and in my country by law you need to have at least position on in daytime so I wanted to make them work when the engine is running during the day but...