How Many Qb120 In Parallel With This Driver?

  • Thread starter Mr.jiujitsu
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Mr.jiujitsu

Mr.jiujitsu

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How many qb120 in parallel with this driver
How many qb120 in parallel with this driver? 2 at low amps?

I think I messed up. I wanted to drive four and I think this will run minimum amperage to two...
 
Toaster79

Toaster79

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320 lm/W? Estimated? Some cryo tech in the background? LM561C is about 170 lm/W at nominal power 0.3W, those would run at 0.25W and double efficiency?
 
Mr.jiujitsu

Mr.jiujitsu

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Oh yeah the intention of this is as a seedling/ clone/starter light if done in a 2 or 3 board configuration
 
Toaster79

Toaster79

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Maybe that was my original thought.... thoughts ?

You get those numbers in a lab at 10% PWM, steady temperature (check datasheet, probably 25°C), basically conditions you don't have in your grow room or your plants won't grow.

Cree advertised 200lm/W years ago with their MK-R and it's being sold again.
 

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