Energy saving bulb energy rating a power 23 watt energy consumption 23 kwh1000h series sylvania mini lynx fast start socket e27 voltage 230 v light colour warm white light output 1 325 lumen colour temperature 2 700 k lifespan 6 000 h bulb shape compact fluorescent tube length 149 mm diameter 48 mm average annual electricity cost 01951 kwh 449 euros source average electricity cost based on figures from eurostat as of 2016