Energy saving bulb dimming 15 100 energy rating a power 18 watt energy consumption 18 kwh1000h series osram dulux intelligent dim equivalent to light bulb 85 w socket e27 voltage 230 v light colour warm white light output 1 140 lumen colour temperature 2 500 k lifespan 20 000 h bulb shape compact fluorescent tube style bulb housing variable intensity dimmable length 161 mm diameter 52 mm average annual electricity cost 01951 kwh 351