growth light 1.Operating frequency:250KHZ. 2. 5 years warranty 3.lifespan:100000hours 4.Ra>80,high lumen maintance growth lightYML-GC06a-200w (has 40w,80w,100w,120w,150w,200w,250w,300w,400w,500w for your choose)Features:High quality iron housing with powerd coated surface for corrosion resistance and durable useHigh purity anodized aluminum reflectorHigh light transmittance polycarbonate ...