... 50mm*H63mm10) Luminous flux of lamp 340Lm(Edison)/380Lm(Cree);11) LED Working Temperature <65°C;12) Color temperature Warm white ... SemiOperating Temperature-20°---+40 °LED Lamp Life50,000 hoursRelevant CertificateCE, RoHS,Warranty2 yearsOptical Data :Light ColorWarm White, Neutral White ... , Cool White,R,G,B,YColor Temperature2,500-3,500K / 3,600-5,000K / 5,000 ...