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Alright I've decided to try out 1050mA. Just turned it up a couple hrs ago. Can anyone tell me what the max heatsink temp I can have? I'm not sure that a thermometer on heatsink reading is very accurate but it showed 100-120F dependent on location. Note: I have the black case fan...

Thanks for all the great info. Previously I did see that thread actually. Helped me choose the KB80's. I found a calculator by bggrass. Assuming this is accurate, if we want to shoot for 800+ ppfd it says I can turn up the amps to about 1050mA for about 880ppfd. I can try this and lookout...

Right?? :clap:

Thanks I won't be defoliating anything at the moment. I'm still training everything back under the net into open space as they come up. About the case fan is it's actually off at the moment. The heat sink runs plenty cool on its own, but we'll see if/when I need to turn up the current...

Noob here trying to find my way through a current (and first ever) grow. I figured I should share what I've put together so far and see if I've screwing anything up. I did basically just throw this all together after researching a bit on here. Setup: 4 CXB3590 36v 3000k MW HLG-185H-C1400A...