Energy saving bulb energy rating a power 8 watt energy consumption 8 kwh1000h series osram dulux pro stick osram dulux pro osram dulux equivalent to light bulb 40 w socket e14 voltage 230 v light colour warm white light output 430 lumen colour temperature 2 500 k lifespan 30 000 h variable intensity not dimmable colour rendering index ra 80 ra length 115 mm diameter 43 mm average annual electricity cost 01951 kwh 156 euros source av