... Outer material: High Pressure Aluminium Die-cast Body coat LVD induction lamp self-ballast light 15W-40W ed with epoxy Powder5. ... high efficient and energy saving3. Excellent color rending index: CRI>80(Ra)4. High lumen efficiency: 80Lm/W, constant light flux ... , unaffected voltage fluctuation (CCC, UL, CE, FCC, SON, KETI approved)Applications:widely used in workshop,warehouse, pasture,other indoors,etc ...