Candle bulb led bulb energy rating a power 6 watt energy consumption 6 kwh1000h series osram led star classic b equivalent to light bulb 40 w socket e14 voltage 230 v light colour warm white light output 470 lumen colour temperature 2 700 k lifespan 20 000 h bulb shape candle style glass bulb variable intensity not dimmable mercury free colour rendering index ra 80 ra length 110 mm diameter 38 mm average annual electricity cost 01951