... Unique heat dissipation, optics, structure, power design, pure aluminum, led temperature below 40℃. 3. 20% PAR and design idea ... up better cooling system, one day later, that led grow light temperature is lower than the same power ... bonsai, garden, green house, sowing,breeding, farm, greenhouse cultivation, water soluble breeding, greenhouse cultivation, pipeline cultivation and so on. Attention: 1 ...