There is the wonderful figure on light bulb packaging in the EU which attempts to express how much energy the light bulb will use in a year (defined at 1000hour

There is the wonderful figure on light bulb packaging in the EU which attempts to express how much energy the light bulb will use in a year (defined at 1000hours of usage)... It's given as XXX kWh/1000h ... which if you're at all familiar with units can be simplified to just... XXX Watts. Plus ca change...