LEDThe plant supplementary lighting systems are usually three types, they are red and blue combinations, all blue, all redwhich can provide red and blue wavelengths of light, covering the wavelength range needed for plant photosynthesis. Thereare two energy peaks in the spectrum of white LED which are the blue area of the 445 nm and the yellow-green area of 550nm. However, the wave band of 610–720 nm that the plants’ growth needs is deficient, making the light supplementingefficiency is very low. Because the proportion of red light and blue light of sunlight is at about 6.8:1 or so, in order forour reference, for foliage plants and leafy vegetables the proportion is allocated under 6.8:1 (red:blue < 6.8:1) and for theornamental flowers especially for the fruit bearing plants the proportion is allocated greater than 6.8:1 [4]. To solve thisproblem, the red and blue proportion switching mode innovation is mentioned in the paper, the red and blue proportioncan be switched between 4:1 and 9:1, further improving the efficiency of the supplementary lighting system (Table 2).