Thats correct. Anyhow it doesnt matter for the light or the plant, if it came from a burning plasma ball in space, or from electrical power send through a diode or through any other thing that it converts the energy into photons. It is not an aspect that matters or makes the light itself distinguishible from each other..... if you only have the light but don't see the "device" type... you have no clue if it is a diode or whatever... all are just devices that emitt light of the same type, we must qualify and quantify the spectrum to tell WHAT it does...... still we cant tell from that, whats the device craft. We could make heuristic assumptions, but we cant tell for sure what the device actually is, if we dont know it. Its the quantity and spectrum that makes the sun on earth so unique and functionable, not the fact that it came from outter space or is a "special" light. Its just all kinds of known radiation in a mix... life adopted to that! That makes it so special in function! We want to know what drives these functions, wich wavelengths, which dose of it! Try and Error, thats all we can do, to riddle it out! Infrared and Near-Infrared are key wavelengths because they transfer heat onto and through the plant and get absorbed by water in deeper structers that not get accessed by PAR-light, therefore driving transpiration and deeper metabolism at better temperatures of the bigger fruits.
Scientists usually dont see that focusing so much on the leaves and only the net-photosynthesis. Some people dont even realize, that the growwth is an exponential growth-function per day, with the actual growth happening in the darkphase. So we need pragmatic approach. What actuals helps in getting the desired crop yield and quality higher, not just "leaves". Its really big complexity that we still need a lot of technological improvement! Its not enough to build high efficient chips... what about the fixtures... what about effectiveness of the light... your light can be ultraefficient, but zero effective! Try only royalblues.... dont work. Try only 550nm... dont work.... its not effective..... all day we want to fidn out whats effective, not just efficient.
Our lamps get more and more effective, no matter if the the efficiency soon going to stall! Because we are not very effective now. Theres lot of room to improve on!
