Energy saving bulb energy rating a power 8 watt energy consumption 8 kwh1000h series philips genie esaver philips eco85 genie equivalent to light bulb 40 w socket e27 voltage 230 v light colour warm white light output 420 lumen colour temperature 2 700 k lifespan 8 000 h bulb shape compact fluorescent tube style bulb housing variable intensity not dimmable average annual electricity cost 01951 kwh 156 euros source average electricity cost