Fluorescent light energy rating a power 26 watt energy consumption 26 kwh1000h series osram dulux de socket g24q light colour neutral white light output 1 800 lumen colour temperature 4 000 k lifespan 15 000 h bulb shape compact fluorescent tube style bulb housing average annual electricity cost 01951 kwh 507 euros source average electricity cost based on figures from eurostat as of 2016