Electrical data Nominal wattage 20.00 W Nominal voltage 6 V Photometrical data Color temperature 3350 K Nominal luminous flux 460 lm Dimensions & weight Diameter 9 mm Length 31.0 mm Light center length (LCL) 19.4 mm Filament length 2.30 mm Illuminated field 2.3*0.8 mm² Filament diameter 0.8 mm Lifespan 100 h Additional product data Base (standard designation) G4 Capabilities Burning position Any Certificates & standards EEI – Energy Label B Country specific categorizations ANSI code ESB LIF M/30 Order reference 64250 HLX 20W 6 use for microscope