Questions tagged [led-strip]

LED Strips come in two designs, both on Flex Printed Circuits (FPC). 1. Simple LED + Resistor versions, typically with multiple parallel segments of three LEDs with matching resistors. 2. Digitally controllable with embedded controllers. Data is wired in series while power is paralleled by segments or pixels. Both have different and similar application challenges.

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24 views

Can someone help me design an expandeable led strip system

I want to make an open source expandable system to control WS2812B 5m 60 ip30 (or higher pixel density) led strips. Im going to be using about 40 meters which is about 2400 leds in total but all the ...
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19 views

Connecting 2 identical led RGBW controllers with 12V led strips same length into a 24V Power supply [closed]

Ok, some bad decisions took place and now i am stuck with no money and: 24V 8.33A power supply with 2 channels. Magic Home 5V-12V-24V RGBW wifi Controller 192W max (got them from here) 15m of 12V ...
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62 views

Powering 10 m of WS2812B RGBs

I wanted to make sure that my solution would work before wiring it physically and I felt that all the great minds here would be able to do that. So I have two WS2812B 5 m LED strips, each containing ...
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44 views

AWGs for the following LED setup

I'm ass deep in my next project.....4 LED cubes(small lanterns) on the ceiling... The strip is: Power: 0.1-0.4W/LED 6W-24W/m Total: 30W-120W This is a variable value Have a 12V power with enough AMPS.....
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63 views

Series and parallel LED using

I am planning to build 4 LED-strips using two different 'white' settings (1+1 strip x 4). The LEDs will be driven by a 24V constant voltage dimmable RGB-DALI driver (up to 5A per channel). My idea is ...
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1answer
45 views

Wiring RGB Strip LEDs w/ just positive and negative wire [closed]

I'm working on a small project, and I had some leftover strip LEDs lying around. They're just the RGB strip LEDs you can pick up at Five Below. They come with an RGB controller attached to a short USB ...
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34 views

Is my wiring for this 5m 2812B Led Strip correct?

I'm building one of those infinity mirror cubes: and I have some questions regarding the wiring. This is what I came up with: Green is data, black is ground and red is 5v power. Every strip has 18 (...
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1answer
36 views

Heated MOSFET with LED strip

I am trying to toggle the power on a 24V LED strip using a IRFZ44N MOSFET. I am able to power the LED strip and vary the current using different PWM duty cycles, but the MOSFET gets really hot, ...
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5answers
89 views

Do I use a relay, MOSFET, or just a switch? (5VDC 15A load)

I have a 5VDC 15A power supply that will be powering both an Arduino and 288 Addressable LEDs. How do I switch the circuit on and off? First I looked at relays. The only relays that I could find that ...
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1answer
74 views

LED strip does not have SMD Resistors [closed]

I just bought a cheap 3.5 x 2.8 mm 12 V waterproof white light LED strip. By waterproof I mean that it is covered with silicone all over. The suspicious part is that I cannot see a single SMD ...
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35 views

LED panel wiring

I have matched an led driver (constant current power supply) to a circuit of leds such that no resistors are needed to limit the current by taking advantage of the leds "near" linear voltage ...
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2answers
106 views

How to wire LED strips into my display cabinet?

Let me start by mentioning that I have little knowledge in this field. LEDs I have: 12v 1Meter Rigid Double-row 3pin LED strips with 1.8A total draw (0.9A each row). For some reason, they have massive ...
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1answer
85 views

Logic OR of three wires, detect ground

I bought a RGB LED strip (analog) and it has one 12 volt and three ground pins that is pwm controlled (I assume) to dim them. I also want to add a 12 volt white strip that turns off when the RBG turns ...
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1answer
43 views

Short LED-strip wiring

Look past the fact, that this will electrocute me - just for now. I am building a small bowl with LED-strips inside it, and I need to wire it. The question is - how? This is my bowl with 24 * 15cm LED-...
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0answers
62 views

Is my Wiring OK? - WS2811 LED Strips

I am looking to install WS2811 LED Strips inside coving on walls for a down lighting effect. I have drawn up a wiring plan but i am not sure if it is correct / the best way to do it. Is there any ...
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1answer
90 views

Why do some WS2813 Ledstrips shift/randomize colors?

The Problem I have a project using multiple WS2813 ledstrips, one variant which uses a white PCB and one that uses a black PCB. When setting the colors of these ledstrips multiple times, I noticed ...
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2answers
59 views

Understanding LED powerstrip and power requirements

I know there are lots Q&As about LEDs and in fact this one in particular sounds very close to my situation but, maybe I'm missing it, none of them seemed to match my experience below. Ultimately I ...
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0answers
30 views

How to calculate a LED pixel's luminance?

if the maximum luminous intensity of a single LED pixel is 1.8 candelas, how to determine it's luminance? The LED pixel is an SMD 5050. ...
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1answer
33 views

Real consumption of SMD5050 Led Strips

I'm building my home lights with an SMD5050 Led strips. And I'm completely lost after comparing specs consumptions with real measured data. So on, I have 5 stripes and 1-to-5 Splitter from my ...
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1answer
34 views

Want to understand the led series/parallel and parallel/Series combination circuit

I'm Working on LED load design circuit which is up-to 64V@1.2A. I thought of giving LED's in series and parallel combination with switches to control the voltage but while searching I found one ...
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2answers
51 views

Powering a 3 LED strip with AAA?

I was looking at these led's, and was wondering if I cut them up into pieces of three LED's each, would I be able to power the three LED's to a decent brightness and an ATtiny85 with three of these ...
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0answers
25 views

Powering Small WSP2811 Strip with 3Volts?

I am a beginner when it comes to electronics and was wondering if I could get someone's help with this project. I was looking at these led's, and was wondering if I cut them up into pieces of three ...
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1answer
38 views

Powering LED strips with batteries

I am sort of a beginner at electrical engineering, could someone help me figure out how I can power an LED strip with batteries? The led strips that I am looking at using are these. They takes ...
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1answer
80 views

Why the television manufacturers (Samsung, Sony, LG, so on) exceed the voltage capacity on led strips (backlight) on TV's?

I dont understand why manufacturers always exceed voltage to backlight tv (led strips). For example i'm fixing a TV with some led burn out. This is the backlight : There are two LED's strips. Each ...
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1answer
81 views

Big voltage drop across MOSFET with LED strip load

I'm trying to power up a Giderwell RGBCCT LED strip using ESP32 (a 3.3V microcontroller) with the help of an IRL540N MOSFET. My circuit looks like this: (sorry for the amateurish/nonstandard diagram,...
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71 views

WS2815 noises problem

I've been trying to use WS2815 leds in my stairs, but I'm struggling with noises problem. I'm using stm32f103c8t6 based bluepill board as a controller for 18 1m long led strips. Each strip is ...
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1answer
21 views

Arduino RGB ledstrip control 2 separate power supplies

Please ignore the 2 green and orange lines in the middle and consider the transistors to be IRF mosfets instead. First of all looking at the setup on the picture: is there any issues with using 2 ...
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1answer
36 views

Project containing different components with audio problems

I am creating a project where I have a speaker that starts playing music as soon as movement is detected. When movement is detected a ledstrip also turns on to illuminate the room. The project ...
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1answer
83 views

How to combat voltage drop on a 5v addressable led strip

I've been trying to make my LED strip work but with no success. It is a 5 meter WS2812B RGB LED strip (60 LED's per meter). I did some research and it turns out that one LED draws around 60mA at full ...
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1answer
53 views

Addressable like 7-segments number display

Scenario I'm planing to start a project that is a number display. It consists in 2 components: The controller: a smart component that knows which number to display The (single) digit: it display a ...
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2answers
86 views

Using one Mosfet to control the gate pin of another Mosfet

I am using Mosfets to power an RGB LED light strip with a Raspberry Pi: https://www.sparkfun.com/datasheets/Components/General/RFP30N06LE.pdf The I though the threshold voltage for the above Mosfet ...
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1answer
48 views

How do I use/set up this LED light strip?

I stumbled upon this long strip of LED lights in my house and was hoping to set them up but have no idea how to. I am pretty sure they are made by Adafruit but not entirely sure. They look pretty ...
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3answers
486 views

Fade in and out 12v LED strip

Is there any easy way to continuously, slowly fade (dim) in and out a couple (5 at most) 12v monochrome LEDs (5050)? A wild guess would involve a large capacitor (for the fades to be slow) and a ...
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3answers
148 views

How much current for a 5V 60 LED/m WS2812B 5m LED strip?

I'm planning on controlling a 5m 60 LED/m WS2812B chip 5V strip with a Raspberry Pi Zero W. According to the website it draws 18 watts per meter (90 watts total). What current would this strip draw, ...
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3answers
981 views

Can you run low voltage current through galvanized steel suspension cable?

The fact that I can find hardly anything about running current through galvanized steel suspension cables on Google should probably tell me I shouldn’t do it, but I thought I’d ask here anyway. I’m ...
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32 views

LED Driver Output - Current Adjustment Range

I bought this Led Driver(HLG-480H-48A) for my Strips that use around 43V 9A. I've never used a LED driver before and have got a few questions about them: The output current adjustment range (...
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3answers
436 views

Mosfet controlled LED strip not bright enough

So, I'm trying to control a LED strip with a NodeMCU using N-MOSFETs FQP30N06L, one for each channel. However, the strip is not nearly as bright as with the original IR controller. (I saw the similar ...
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1answer
65 views

Battery powered step-up converter not gives enough amps

I am creating two part PCB running on Li-ion battery 26650 (3C discharge rating, max capacity 5000mAh) powering few LED strips with controller. PCB 1 (schema 1) has step-up converter MT3608 which ...
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1answer
69 views

Powering LED light with power bank

First I want to say that my knowledge about electricity and physics is on 8th grade level maybe. During this lock down I've got an idea - add light in my backpack and in the same time charge my phone. ...
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1answer
146 views

LED strip hot / drawing more current than expected

I am trying to wire some LED strips but they are getting a lot hotter than expected. I have noticed that they are also drawing much more current than expected. I am going to show what I've measure ...
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1answer
20 views

Troubleshooting connections between strips of WS2811 Addressable RGB LEDs

I'm hoping for help troubleshooting a light array I built for my son's room. I strung together 8 strips of WS2811 addressable RGB LEDs (30 per strip). I soldered all the strings together, and tested ...
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0answers
31 views

24v from 2x 12v DC power supply?

I have a box full of 1-6amp 12v power supply and 1 short run of 24v led strip, rated about 1.5amp draw at full blast. Can I take 2x 2A 12v supplies (ungrounded plug) to run in series to easily ...
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1answer
74 views

What is the use of resistors or capacitors in a led strip? [closed]

I own an 60 led/m ws2812 led strip. I noticed that every two leds there is an smd component. What type of component is this? Resistor or capacitor? In which signal is it connected to? If i connect ...
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2answers
55 views

SMD 5050 LED current draw calculation

I am trying to calculate max current draw for SMD 5050 LED strip. Datasheet says that 1 channel draws 20mA. So I do the calculations: 20mA * 300leds * 3channels = 18A I already have the same strip ...
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1answer
46 views

Powering 1920 leds with 32 strips of 60 ws2812b led strips each (32 meters)

I'm tring to build a led display with 32 strips of ws2812b led strips with 60 leds each. That's a total amount of 1920 leds. How many power supplies should I buy? Given the max current of 50mA per ...
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2answers
93 views

WS2812B current draw

I want to put my led strip in my PC and control it with Arduino or ESP. Since led strip has 60 leds it's going to draw ~3.5 amps. I'm asking if anything would happen if I connect led strip to 20 amps ...
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1answer
25 views

Connecting led IP65 strip from a wall socket to an adaptor/psu

I have no electrical background, so I have very basic knowledge about this, but this is what I can gather. So I'm trying to set up an led IP65 white strip, but I know that it needs certain components. ...
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4answers
76 views

How to power a high current / low voltage circuit through wall outlets?

I'm trying to wrap my head around this basic problem but I'm stuck here: I'm using 4 of these LED strips and I'm not sure how to safely power them. They are rated at 18W/M, so 4 strips * 5m * 18W = ...
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0answers
46 views

Make a molex to USB Female power cable?

Could I recreate this molex to female USB cable by cutting off the molex connector of a fan and the female end of an USB extension, then solder the red and black wires together? If it's possible, ...
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2answers
90 views

Help with powering LED strips from a LED TV

I have two LED stips salvaged from a LED TV. I only have these to LED strips and the ribbon cable that was connected to them from the TVs screen and not other PCB boards or components to help power ...

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