Specification: 1. 3W led chip, 60 90 120 degree lenses, pure aluminum cooling ... Unique heat dissipation, optics, structure, power design, pure aluminum, led temperature below 40℃. 3. 20% PAR and design idea ... effect is just 8% - 10%. 3. These LED grow lights use only about half the electricity as HPS ... up better cooling system, one day later, that led grow light temperature is lower than the same power ...