Pin socket bulb halogen light power 35 watt energy consumption 35 kwh1000h series osram powerball hci t socket g12 voltage 86 v light colour warm white light output 3 600 lumen colour temperature 3 000 k lifespan 12 000 h style glass bulb 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