... Feature:The lamp shell is high-quality die-casting aluminum or section aluminum, with good heat dissipation.Light distribution technology changes LED ... Lamp’s Luminous Efficiency: 70-90lm/WViewing Angle: surface emittingMaterial: aluminum alloy (shell), coverLamp Holder: E26\27,E14,B22,GU10 ... change color.Quakeproof, no pollution. LED bulb is made of aluminum and PVC, not easy to be damaged, and can ...