Fluorescent light energy rating a power 36 watt energy consumption 36 kwh1000h series osram lumilux t8 socket g13 light colour neutral white light output 3 350 lumen colour temperature 4 000 k lifespan 18 000 h bulb shape tube light style glass bulb variable intensity not dimmable diameter 26 mm average annual electricity cost 01951 kwh 702 euros source average electricity cost based on figures from eurostat as of 2016