... steadily. 5. Various bases are available, such as E26, E27, B22, E14 etc. 6.shell color:sliver , copperOur LED ... : Fin heat sink used, thermal conductivity is up to 209W/m. K. International brand LED (Epistar, epiled, BridgeLux). . 4. ... Physical Specifications:DimensionL98*D50 mmWeight68 gHousingAluminum + PC lensSocket TypeE26/E27/B22/E14 etcWork EnvironmentIndoor use (applicable for dry environment)2 ...