effeciency

i know it's a wrong qustion , but can i calculate estimately GPW form PPFD/W like this graph i want to know estimately GPW for example when i use VERO29 C #1 and CLU048-1212 on same wattage : 100w VERO29 C #1 on 100w > 9.2 PPFD/W CLU048-1212 on 100w > 7.7 PPFD/W how much difference GPW between...

Hi everybody, I wanted to ask if somebody more experienced than me know this kind of staff. Right now I have a 400w HPS light for 3*3feet grow tent. I was wondering how much LED I need to get same or similar results. I was looking at HollandStar light which is advertised as 1800w and I think it...

Just a quick little post on LED effeciency. Phosphor conversion effeciencies (CE) are never over 1. They approach 1, but never exceed 1 (about 99.9%). This essentially means that photons emitted are maintained, ie the phosphor film doesn't diminish the initial photon quantity, all photons are...

I'm looking for the most electrically effecient 0-3w chips. Im looking for the chips that produce the least % of waste energy or heat. I'm not looking for the best μmol/j, although I'll take it if you have it. These are the peak wavelengths I'm after and I would prefer a wider band than a...