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    What color temp for my COB veg light?

    Howdy, Converted two mars2 panels to 3500k citizen clu 1212 for flower, looking to convert my other two panels over now for my veg light. Was thinking 4500k off the top. I've read all the spectrums between 4k-5k are good but wanted to know what you all found to work best personally. Thanks!
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    Mars 2 400 Cob conversion: Driver questions

    Howdy guys, converting my two Marshydro 2 400's to cob lights. The initial phase is going to be the growmau5 tutorial on youtube, simply mounting a new COB outfitted plate and connecting the original drivers. The second conversion will be to remove the stock drivers and replace them either...
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    Approve my build? Numbers seem slightly off

    So, I've decided to delve into a 3x3 cob build and trying to maximize efficiency at the wall. I was hoping to pull off a HLG 320H-c700 with 12x CXB 3590's, but when I divide the forward voltage of the driver with 36v it comes out to driving 11.8888 cobs. Whats confusing is when I calculate...
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    Cob drive amperage & effective penetration

    Hi guys, first time poster on these forums. I've been studying up on what I want for my first build but had one question regarding driver amperage & canopy penetration. Has anyone found a particular Mean Well (700ma, 1050ma, 1400ma) that is hitting the sweet spot in terms if dense fully formed...
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