... ,high quality 4.Warranty:2years Features: Compared to traditional LED heatsink,our dissipating area is bigger,air convection is better ... lifespan:above 50,000H using life2) Low maintenance cost:ordinary led ceiling light 5000 hours using life3) Brushed Aluminium surface4) ... 50/60HZLuminous Flux: white: 95lm, warm white: 75lm .LED Color: WW,NW.CW, R,G,BBeam Angle: 25°Operation temperature: -20°-+50 ...