Led Grow Lights Bulb For Plant 24W E27 PAR38 Highest Efficient Hydroponic Full Spectrum LED Plant Grow Lights n Best 3 Bands Growing Combination (660nm and 630nm Red and 470nm Blue) Compare to 12W grow light, 24w plant grow light has also 12 leds but in 2w/Led, same small size and shape, but twice bright and power as 12W .And adding Red LEDS for better flowering and fruiting. It is designed to fit standard E27 socket, Easy to set up and use - no special lamp needed, a desk lamp will do. LEDS has low power consumption, high 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. This hydroponic grow light composed of 12pcs 2W high power led lamp beads. Has red wavelength selection 620nn-630nm or 640nm-660nm, blue wavelength selection of 460nm-470nm. This plant light can cover more kinds of plants which need stronger lights, also better for flower and fruits period because of more red wavelength. 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. Great heat dissipation. The LED grow light is constructed of pure polished aluminum to maximize heat dissipation and a ribbed design on the sides that aids in keeping the bulb cool, maintaining a cooler temperature even after 18hours continuous use.