[QUOTE=dean.gray.9216;1070910169] Welcome to led grow lights, that 900w timber uses 432w PAR watts. Also the cree cxb3590 while being the business a few years ago are not nearly as efficient as the HLG.
Lastly, those cobs on the timber will be too powerful in your 16sq feet. More for a 5x5 or 6x6
The HLG is far superior imho
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