Discharge lamp power 70 watt energy consumption 70 kwh1000h series osram vialox socket e27 voltage 230 v light colour warm white light output 6 600 lumen colour temperature 2 000 k lifespan 28 000 h style glass bulb length 156 mm diameter 38 mm average annual electricity cost 01951 kwh 1366 euros source average electricity cost based on figures from eurostat as of 2016