No wonder my bills for electricity were so high!

All the lights seem to list power consumption rating of 10. Considering other electronics also have power ratings that range from 1 - 10, and the cheap stuff (just look at the TVs for a quick example) have low and the expensive stuff have high, I'm assuming these power ratings work the same way, say, comfort ratings do: 1 is worst, 10 is best, meaning 10 doesn't consume as much power as 1 does.