I have a diy led light that I put together. I broke one of the potentiometers as doing so and looking for a reolacrmentbbut I can't find anything that looks or even sounds familiar. Anyone have an ideas? I've been looking on ebay. And how do I wire it? I'm sending 1000 ma through it
dig led question about potentiometer
- Thread starter tdtreefer
- Start date
Really, 1000mA thru the pot? How do you have this setup configured? Dosen't sound like the best idea in the world to me, at least not efficient if your dimming strings by adding resistance with a very heavy duty potentiometer.
What are your led strings? Type of LEds and how many wired in series?
What power supply? Amperage and voltage rating?
Any LED drivers used for current limiting or does this rely on the resistor method?
Without more info we can't really help.
What are your led strings? Type of LEds and how many wired in series?
What power supply? Amperage and voltage rating?
Any LED drivers used for current limiting or does this rely on the resistor method?
Without more info we can't really help.
OK so the series I need the dimmer for is three 10 Cree led. They draw 1000ma wired in series. I have a constant currant dimmable driver. I bought the lights from Cree driver from eabay. It came with a potiniometer but I broke it and looking for replacement. I have two 17k and one 450nm driver is rated for 50w I'm only drawing thirty.
Yes I am using drivers.
Can you post links to what you have? LEDs and Drivers?
I'm going to hazard a guess English isn't your first language? That or auto correct is not playing nice as you type.
I'm still not at all sure what you have. I need the specs of the LEDs and the specs of the drivers to help. Links to the ebay page would help a lot.
I'm going to hazard a guess English isn't your first language? That or auto correct is not playing nice as you type.
I'm still not at all sure what you have. I need the specs of the LEDs and the specs of the drivers to help. Links to the ebay page would help a lot.
mcgyvr
New member
Just need the part number/manufacturer on the driver (or link to the datasheet)..
The datasheet will recommend the proper resistance value for 0-100% dimming.
Heck.. don't even need that.. Just look at the marking on the potentiometer.. It will state its resistance on it.
Probably 100k
The datasheet will recommend the proper resistance value for 0-100% dimming.
Heck.. don't even need that.. Just look at the marking on the potentiometer.. It will state its resistance on it.
Probably 100k
oreo57
Well-known member
how many terminals does the driver have?
normally, they have...
I cant see a dimming input in the picture, is there one?
I dont think dimming the LED output directly with a pot is a good idea... You're essentially moving the power away from the LED circuit and into the pot... at 1A I imagine it would get very hot, so you'd need something pretty hefty...
Maybe you should be looking at downlight dimmers?
normally, they have...
- Terminal for input (L/N in your case)
- Terminal for LEDs (marked with diode in yours)
- Terminal for dimming signal (0-10V input incase of pot)
I cant see a dimming input in the picture, is there one?
I dont think dimming the LED output directly with a pot is a good idea... You're essentially moving the power away from the LED circuit and into the pot... at 1A I imagine it would get very hot, so you'd need something pretty hefty...
Maybe you should be looking at downlight dimmers?
Last edited:
Ok so if a downlight dimmer is one what would be on the wall in your house you are correct. It would go in line from. Wall to driver. I did a little searching and found a thread on an electrical website that had stated the same question with a driver in the same setup as mine. Now to make this all in a neat package sounds hard and lots of wiring. Just thought I would share that I figured it out
It's really hard to recommend anything at the moment because it could be a fire hazard not knowing what else is going into this. Are all you LEDs capable of at least the 1000mA? How many LEDs are you using? If the summer is on the plug end of things, a coral compulsion type dimmer like this might work. Post more info if you can...
