Discharge lamp power 35 watt energy consumption 35 kwh1000h series philips master colour cdm t socket g12 light colour neutral white light output 3 300 lumen colour temperature 4 200 k lifespan 12 000 h bulb shape tubular style glass bulb average annual electricity cost 01951 kwh 683 euros source average electricity cost based on figures from eurostat as of 2016