Lux for measuring led light?

I can help you buddy. It's a little technical so I broke it down in steps. You can do Step 1 only if you want, but if you want more accuracy you can move onto step 2 & 3 also. 1. Use this calculator to calculate your PPFD: https://www.waveformlighting.com/horticulture/convert-lux-to-ppfd-online-calculator - Just select the light type and then input your average LUX readings at canopy. It'll tell you roughly what your PAR/PPFD is. 2. If you want to go a step further in accuracy, you can calculate your Daily Light Integral (DLI) here: https://www.waveformlighting.com/horticulture/daily-light-integral-dli-calculator. -I believe a DLI of between 40-55 is optimal depending on your other inputs (Temps/Humidity/Co2). I think Dr. Bruce Bugbee runs at about the same range (sorry, I don't have a reference for that one) (**DLI is the most important light measurement. If you think of it this way, light is the plants main food, and the plant eats little light photons all day, and just like humans, it can only eat so much a day. The DLI is the exact amount of light photons your plant eats each day. So you want to feed the plant as much light Photons as possible without overfeeding and making it sick.**) I hope this helps and I hope I simplified it as much as possible, if you want me to elaborate or clarify anything, please ask.