Product basic info Diameter unit: 21 mm Height unit: 138 mm Electrical data Lamp socket type: SFc 10-4 SI/M4 Lamp type: CSR double-ended Technical data Colour temperature: 7000 °K Average lifetime: 750 h Intensity: 40000 lm Voltage rating light bulb: 95 V Power supply Power consumption: 575 W (EN)