Halogen light reflector lamp power 50 watt energy consumption 50 kwh1000h series philips aluline socket g53 voltage 12 v light colour warm white colour temperature 3 000 k beam angle 24 lifespan 3 000 h bulb shape reflector diameter 111 mm average annual electricity cost 01951 kwh 976 euros source average electricity cost based on figures from eurostat as of 2016