How about some education. Your T4-2100 means that your lamp has 4 cobs ran at 2100mA which tells me that the cobs voltage is 36.6. Now take 36.6 x 2.1mA=76.8 watts per cob now times that by 4 which = 307.4 watts which is your total output. Im or was running my original Bridgelux Vero build from...
. Your tasty t-4 is a 300 watt lamp which gives you 37.5 watts per foot of growing space which is more than enough photons for your 2x4. With the HLG lamp your spending needless money plus your hvac cost will increase due to the extra heat the QB will put off. But if you really want a QB hell...
Did the memo have pictures???????
Also I just added the Skull Fuck while wearing a mask and a few other things that are illegal in the lower 48 to the Oriental Version of the Karma Sutra ...