Superdream E27 12W Led Grow Light TT-GL20 Red Blue LED Lights for Plants in Garden Greenhouse Superdream LED Plant Grow Light has been optimized to produce the most efficient wavelengths of light to produce peak photosynthesis performance in your garden plants & vegetables This led grow bulb has low power consumptionhigh luminous efficiency and long service life, the electronics inside are stepping down the voltage The outside is constructed in a pure heat-sink fashion, It does not generate any noticeable heat even 17hrs a day. keeping your temperatures down perfectly These growing lamps emit the wavelength of light which can be fully absorbed by the plants photosynthesis This plant growing light can rapidly improve the health of plant and growing, generally more leaves popping up within 2 weeks of using this growing lamp on a daily basis