Discharge lamp power 1 000 watt energy consumption 1 000 kwh1000h series osram vialox socket e40 light colour warm white light output 130 000 lumen colour temperature 2 000 k lifespan 16 000 h style glass bulb length 360 mm average annual electricity cost 01951 kwh 1951 euros source average electricity cost based on figures from eurostat as of 2016