AC INFINITY LED LIGHTBOARD Settings

that calculator is neat, but i think it suggests a bit too high DLI for mature vege. 40 and under... and even 40DLI is pushing boundary for ambient co2 20dli in early vege...seems about right.. ahh they list umol/J - definitely lower bin diodes 2.65 * 200w = .530umol/s the maximum dli you can provide in 8 sq ft over 18 hous is... (assumes optimal height, and this numbe will be highe than actual due to some portion lost to walls an dmissing the plant.) 530 / .743m^2 = 713PPFD over 18 horus is greater than 43 DLI (my table shows "667" as 43.2) AND -- over 12 hours is 30DLI give or take. confirms what i said below... could use a bit more in 12/12... is almost perfect fit for 18/6 in a 4x2 ove 18hours and growing autos.

As far as ramping up... you let plant dictate... length of internode and such will guide how much light you can provide. don't let it stretch.. don't let it get too tight. it won't take long. observe and react.. take a few notes for next time. too many variables to give an exact answer for you. at full power you are 25watts per sq foot, and how you choose to level out light in coners etc plays a role in effectiveness too. (18-22" for a quantumboard is probably best and most even coverage. assuming decent efficacy, this is fine for a 18/6 (possibly 16/8 or add a couple inches to height) and be up near max DLI for normal environments (fairly controlled beyond just survival and atmospheric co2 etc etc -- you can go higher with co2 and tightly controlled environment) 12/12 will still be okay, but won't be up near max yield capability for the 2x4 area. Talkin maybe anothe 40w, so nothing big deal there.. in general the amount of light you provide increases yield, but not quality. that is mostly genetics. so more watts might give you a bigger yield in 4x2 if gowing photoperiod plants. 30w is enough with high end equipment... Guesstimate -- 200 watts / 544 diodes = 0.37 watts per diode.. this is mid to upper mid range efficacy. If it is "top" bind diodes sj/sk, it might be in the upper middle range. Another 40w would be more optimal for 12hour schedule.. .and 18/6 with autos will knock it out of the park. So, it's pimping for autoflowers... would like a bit more oopmph for 12/12 but will do well there too.

https://growlightmeter.com/calculator/

As grow says about app,this one has a DLI calculator. I use this,but straight download apps rarely accurate,calibrated with a light meter or your manufacturers par reading at set height and footprint value. Hope that helps. Don't matter how you achieve DLI but it helps, ie light height,dimmer setting etc

Download a PPFD light meter app for your phone. With that you can measure the light level instead of guessing. Calibration will make the app more accurate but even without calibration it's better than saying run your light at 75%.