giantsfan24
Well-Known Member
I figured it out. Thanks!
You could run 7.94 (8 will almost certainely work, but 7 will work for sure) citis cobs on a single driver and they would be seeing like 24 watts each.whats up everyone? i ran my last lights in parallel but i wanted to run the new ones in series and i wanted to double check my shit before i order a bunch of the wrong drivers. ive got 32 cxm22s on the way from cobkits and im gonna be pairing them up with hlg185h-c700b's @ one driver per 4 cobs to put them at 50w each. my question is can i use those same drivers to power 4 citi 1212's since they are 36v cobs instead of 50v like the cxm's?
heres the specs on the driver just in case-
Input Voltage 90~305vac Universal Input
Constant Current 700 mA
LED Total Fwd Voltage Min 143.00 vdc
LED Total Fwd Voltage Max 286.00 vdc
Output Power 200 Watts
over 146V your driver will clamp current or dim down based on the PDFcan anyone confirm that n.4 citi CLU048-1212C4-353M2K1
are fine for HLG-240H-1750B at max power?
if i see simulator voltage at Tc 50° it's between 37.0 and 37.4v...
on calculator total voltage Tj 50 = 147.92v
thank you
I suppose the same...with Vero 29 D > n.4 on HLG-240H-1750B kick to max 1050mA...over 146V your driver will clamp current or dim down based on the PDF
Sometimes if its close you can dim and they will work, but thats just sometimes when the you are right on the edgeI suppose the same...with Vero 29 D > n.4 on HLG-240H-1750B kick to max 1050mA...
like hardcap of the driver...
Looks very nice!Good day to you all!
Many thanks to all DIY masters...made this possible for me...for 500$ CDN (350$ us)
20''x17'' 4 x CXB 3590 @ 1400ma
btw, I have the ''a'' model of hlg185...can I play with dimmer while its on?
also is it normal the driver warms up like this, I can touch it, but its hot...
thank you
I had driver (B type) buzzing at full throttle the other day, and I noticed the Voltage at the wall was low that day.hmm driver emits a buzz when not at full throttle, very shady dimmer...will know for next time...option b with external dimmer.
Would it make the same sound? no buzz @100% and the more you dim the louder the buzz...
maybe im a buzzer freak, with anything around might not ear it but since this thing is silent...
I've been playing with that, and it doesn't seem to give any definitive answers on how many drivers to how many cobs, if you are over/under...This citi calculator may help you decide/compare at least, just pick the cob and enter the power
Its in bggrass signature, 2nd file. I couldnt attach it because its a java file
https://www.rollitup.org/t/diy-cob-led-calculator.890214/page-9
Just a division problem 10/36=278maView attachment 3894656 I don't Know what's the forward current of an led 36volts and 10 watts, can anybody Pls let me how to get checked this value by multimeter.
Thank you,Just a division problem 10/36=278ma
What leds are you using?Thank you,
Can u plz help me to connect those leds to my NES200-36 MEANWELL driver.