I have 5 of this module from eBay store. Friend of my got 3 from a different store.
I have open them up to add PWM dimming, here is some of the major difference.
My drivers run 100% at 108v 750mA = 81W per channel 162W total his runs at 105v 530mA = 56W 112W.
My drivers have PWM input but not utilized by factory his have no PWM input in the drivers. My led
have 3rd driver for the fans, his leaching power from the led
drivers. In my LEDs all 3 fan runs regardless which led
string running "white or blue" his fans 2 fan for blue 1 for white.
My LEDs have heat-sink on top of them, his LEDs just a 1.5mm aluminum plate. My LEDs powder coated his LEDs spry painted. My ebay seller let me chose the optics his come with who knows what. My LEDs grow sps
his grow algae
Btw I'm running around 40-50% peak 75% on 125G tank 5 led
module. Pay few $$ more to get better LEDs
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