Fluorescent light energy rating a power 11 watt energy consumption 11 kwh1000h series osram dulux se socket 2g7 light colour warm white light output 900 lumen colour temperature 2 700 k lifespan 20 000 h bulb shape compact fluorescent tube style bulb housing variable intensity dimmable length 215 mm average annual electricity cost 01951 kwh 215 euros source average electricity cost based on figures from eurostat as of 2016