Energy saving bulb energy rating a power 14 watt energy consumption 14 kwh1000h series osram dulux intelligent facility equivalent to light bulb 60 w socket e27 voltage 230 v light colour warm white light output 800 lumen colour temperature 2 500 k lifespan 20 000 h bulb shape compact fluorescent tube style bulb housing variable intensity not dimmable length 125 mm average annual electricity cost 01951 kwh 273 euros source average elect