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Checking the Samsung calculator on the 3000k. Running at 1.4A max and total wattage of 400W. All numbers the exact same to check what has best lumens and efficiency ratios. Average new grower based on 400W setup. All tests are in series. Till maxed out at 400W. Here is the list from best to...

ppfd 582.95 @ 200.2w = 2.9118 efficiency. Maximum 1.4A.

PPFD 582.95 @ 200.2W Efficiency 2.9118

Nice, good luck also. Not a fan of the coloured lights. Good for veg, not that good for flowering. My set up is 3000k Samsung S02. Cost 100 for lights strips, heatsink and extrusion 50 and driver 50. Easy as to put together. So much light and uniformed . My set up is tiny.. 4 x 2 12 strips...

Using Meanwell HLG 185 C1400B to run them.

Finished first set. Pictures available, very cool ran softer. Maximum setting they are a little hot in centre. Not that much to be honest. Could be run at maximum when needed no problem. Running at just over test results of 1A. Found this the best setting. No par meter. Only lux reading of...

Finished the first set of lights. Pictures available if anyone wants to see them working in grow room.

https://www.pnas.org/content/102/50/18225

Waiting on some heatsinks from China. Got a great deal £30 for 25mm wide 12mm thick 24 in total. Won't be here till July :-( So got this aluminium flat bars 10mm thick to make do till they arrive. Running 12 strips on hlg h185 C1400B on one. Build the exact same 12 strips on another rig, again...