First of all, the spectrum of the plant lamp is 660nm red light and 450nm blue light and what kind of chip. The current domestic Hongguang chip is good and very efficient, 660nm42mil, up to 2.5μmol/J, 45% efficiency, imported, regardless of how expensive it is. Everything is the best. The key is good heat dissipation, good heat dissipation efficiency, light decay life, greatly increased heat dissipation, poor heat dissipation, everything is useless
Light formula (confidential or patented) ppf ppfd μmol
Red light plants grow long and blue light control Long long infrared light, long ultraviolet lamp, UVA curb long
Red and blue combination is the best (because you and I don’t have a light formula) red light plants absorb 85% and blue light plants absorb 13%. Red and blue lamp beads are needed compared with others. Spectrum induces plant photosensitizers, but too much light is a waste. Plants lacking other spectrums lack photosensitizers, and the light benefit rate will also be reduced. Moreover, the same kind of plants require different light at different growth stages. Moreover, different plants are not as good as the sun, no matter how much they are supplemented, there is no sun 130- 180w/m? One acre of land requires at least 85kw fill light, which costs 40 to 50 yuan per hour
Fill light? μmol/J mainly depends on the LED chip area 12mil 14mil, the efficiency is much lower than 42mil. The same LED lamp bead also depends on its efficiency curve. 350-700ma (1-3w) lamp bead works at 400-450ma and has the highest efficiency