Halogen light reflector lamp power 75 watt energy consumption 75 kwh1000h series sylvania hi spot socket e27 voltage 230 v light colour warm white luminous intensity 5 500 cd colour temperature 2 900 k beam angle 10 lifespan 3 000 h bulb shape reflector average annual electricity cost 01951 kwh 1463 euros source average electricity cost based on figures from eurostat as of 2016