ZTOP E27 Full Spectrum Led Grow Lights for Indoor Plants Hydroponic Garden Greenhouse The Led grow light provides you a full spectrumProfessional Lighting,with standard E27 socket,it is easy to set up and use. By using aircraft grade aluminum and a unique heat sink design to maximize heat dissipation area,the LED maintains a cooler temperature even after 24 hours of continuous use. With 5 LEDs ( 3 Red and 2 Blue).Suitable for all stages of plant growth,flowering and fruiting. Blue light is good for photosynthesis; and help to induce Chlorophyll and Carotenoid, which are necessary for healthy leaves; Red light is best for blooming and fruits. Ideal for most kinds of plants in many fields, such as hydroponics, greenhouse. lighting, plants growing, flowering, fruiting etc.