Pin socket bulb discharge lamp power 35 watt energy consumption 35 kwh1000h series osram powerball hci t socket g12 light colour warm white light output 3 600 lumen colour temperature 3 000 k lifespan 12 000 h bulb shape tubular style glass bulb uv filter length 100 mm diameter 19 mm average annual electricity cost 01951 kwh 683 euros source average electricity cost based on figures from eurostat as of 2016