@Alex Lau - I still need you to get me those 320 watt heat sinks as soon as possible. I know they will be fine on the Coolbays, but I have 3 HLG320s that I don't feel like dimming down and they run hotter than I like, even if they are safe. I also like that they are shorter. Do you have a Datasheet on the 320 heat sink?
I finished one of my replacements and I like how it came out, just a little taller than I like. I have to going to some friends to test, one is using only for vegging and the other wants to flower.
Mine are doing great and drinking a lot. The tallest girls are 50" not counting the pot. That light is almost against the ceiling. I ended up putting all the drivers back in the room. The heat coming off them while running 240v is not worth having longer cords on all my drivers.
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