... high bay light:Rectangular fin shape pure aluminum materials Radiator heat sink, very big area for heat dissipation ... temperate-40deg. to +60deg.Lifetime50000 hoursMaterial Fin Aluminum radiator+ PC/ Al reflectorWaterproof gradeIP54CertificatesCE ROHS PSE ULWarranty3 yearsDimension of ... type: Physical photo Packing information:Packing of heat sink radiator: 1pc/carton, G.W: 5Kg/carton, Carton size ...