1) Cover: acrylic or PC 2) Housing: powder coating steel or stainless steel 3) CE, CCC, ISO9001:2008 4) Sealing 1.Energy-efficient,environment-friendly 2.No glare,no noise,directional lighting source,low light pollution3.Constant current design and aluminium material,low heat generation, highly stable performance4.Slim and fashionable design5.Remote-control and dimming available6.Easy ...