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LED power supply question


Brlowe

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Hello all,
I have purchased the RapidLED retrofit kit for my Biocube 29. I also purchased the Bluefish controller. I want to use the Bluefish Power Dimmer to run my LED's so here is my question.
The power dimmer has a 40 DCV max input and each channel will drive up to 120 watts of LED's. What is the max voltage 14 Cree Royal Blue LED's need? and how many amps/watts of power will they be pulling?
I'm trying to figure our what size power adapter I will need.
Any help would be great. I do have a power supply and LDD drivers if needed but would like to use the bluefish dimmers.

Brandon

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I would figure 3v each and 3 watts each until you get them hooked up and running.

 

Then add 20%. For overhead and efficiency losses.

 

Until you get them hooked up to a volt meter and amp meter, you wont know exactly how much a string will pull. There is enough variance between individual LEDs to give you slightly different numbers, if you look at them individually.

 

So I would start with 12 on the string.

 

You can do 16 on an LDD if you give it 52-54v.

 

I HIGHLY recommend using the HLG Meanwell as the power supply. Its safe, energy efficient, and waterproof. And its a driver as well.

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