Discharge lamp power 72 watt energy consumption 72 kwh1000h series osram powerball hci t socket g12 light colour warm white light output 7 300 lumen colour temperature 3 000 k lifespan 12 000 h style glass bulb uv filter length 100 mm average annual electricity cost 01951 kwh 1405 euros source average electricity cost based on figures from eurostat as of 2016