Different plants have different needs for the spectrum

Different plants have different requirements to spectrum, such as lettuce is red/blue 4:1, strawberry 5-1, universal 8:1, some need to increase the infrared and ultraviolet light, a little knowledge, but some factory do all spectrum euphemistically called together the whole spectrum is suitable for any plant, because the uv takes orchids as dead,  Not hundreds of thousands.  White light has all the spectrum, so somebody made a white LED, full spectrum, and Philips did this stupid thing.  And I did an experiment, the same plant, with two 200 w white light, with a 90 w UFO (red and blue 1:1) and 90 w square (red, blue 8:1), a week after the white light of plant obviously grow more slowly than with red and blue lights, don't blind faith in the white light, add a few up in the red and blue lights white LED is used to improve the use, rather than as an advocate the lamp use.  The output lumens of LED itself are not high, and some customers say that Philips' t-tube lamp is useless, because the maximum value of philips' T-tube lamp is only 20W, and a matte lamp shade is added, which also loses part of lumens.  How many micromoles do you have left if you hang it up and shoot it at the plant?  If it works.  LED plant lights below 50 watts are suitable for use near plants, more suitable for plant tissue culture (layered planting), family flowers and vegetables, small space soillless cultivation and other fields, and LED plant lights above 50 watts are suitable for greenhouse use, lamp from the main crop canopy area control in 2.5 meters is better.