38 High Power Hydroponic 168 LED Grow Light Bulbs Lamps This led grow bulb has low power consumption, high luminous efficiency and long service life. These growing lamps emit the wavelength of light which can be fully absorbed by the plants photosynthesis. No energy waste like fluorescent lights etc. Sources rich in red light are more efficient and beneficial for photosynthesis, best for blooming and fruit .The Chlorophyll and Carotenoid need blue much, good for the photosynthesis, best for promoting the leaf. This plant growing light can rapidly improve the health of plant and growing.