Energy saving bulb energy rating a power 15 watt energy consumption 15 kwh1000h series megaman compact classic equivalent to light bulb 70 w socket e27 voltage 230 v light colour warm white light output 800 lumen colour temperature 2 700 k lifespan 10 000 h bulb shape standard style glass bulb variable intensity not dimmable length 128 mm diameter 68 mm average annual electricity cost 01951 kwh 293 euros source average electricity co