DiY LEDs - How to Power Them

Which 400nm diode?`And that would probably fuk up the circuit, no? I'd be more tempted to add FR. I think voltage wise the Osram Square Reds are quite compatible, but their royal blue is 25% higer voltage.

If they are in series as you say then no probs with using different voltage, they just add up. Would be a hard board to aource drivers for though, 57-58V board.

Well the Nichia 405's are like 4V+... Not really an issue adding 2V, but wouldn't you have to do it to every circuit? and there are 6. But overall 660nm would take a hit?

Rocket Soul said:

If they are in series as you say then no probs with using different voltage, they just add up. Would be a hard board to aource drivers for though, 57-58V board.

Click to expand...

I've decided though... I wouldn't add anything other than far red to the circuitry, unless there's a good argument that the 405 lifespan us the same, which ut seems there may be some doubt.

If they are running these boards at 314W DC/55v/5.6A for the HLG 350... that means you could get more out of 1 x QB648 by using a 200W driver. Yeah its not going to be as electrically efficient at lower wattages, but you're getting a lot more light by squeezing the white diodes from 77.77mA to 92.26mA. Those reds are rated at 700mA test current, which means if whites are run at 92.26mA, reds are running at only 553.6mA.

At these currents you are under half the maximum rated current for white, and only a little over a third the maximum rated current of red.

It's going to produce more heat at these currents... but not a shit-ton, and you're also getting a lot more red photons out of the red diodes.

I'd like to hear any arguments why this isn't better advice, when you can easily pick up a decent 200w driver for the price of a MW HLG?