Energy saving bulb power 27 watt energy consumption 27 kwh1000h series megaman clusterlite socket e27 voltage 230 v light colour warm white light output 2 800 lumen colour temperature 2 800 k lifespan 25 000 h bulb shape compact fluorescent tube style bulb housing variable intensity not dimmable colour rendering index ra 80 ra length 188 mm diameter 63 mm average annual electricity cost 01951 kwh 527 euros schaltzyklen 1 000 000 quan