... . 3W led chip, 60 90 120 degree lenses, pure aluminum cooling system 2. Unique heat dissipation, optics, structure, power design, pure aluminum, led ... the tradition HPSL and MHL, that light effect is just 8% - 10%. 3. These LED grow lights use only about half the electricity ... fan make up better cooling system, one day later, that led grow light temperature is lower than the same power in market. 5 ...