Halogen light pin socket bulb power 20 watt energy consumption 20 kwh1000h series philips capsuleline socket gy6 35 voltage 12 v light colour warm white light output 300 lumen colour temperature 3 000 k lifespan 4 000 h style glass bulb variable intensity dimmable uv filter diameter 11 mm average annual electricity cost 01951 kwh 39 euros source average electricity cost based on figures from eurostat as of 2016