A question was posed to me not too long ago about whether it was better to leave compact fluorescent light bulbs (CFL) on or turn them off when leaving a room. I knew I had come across that information in the several books I have on "greening your home", and wouldn't you know, I found it.
When it comes to leaving regular light bulbs (incandescent bulbs) on, columnist and author Adria Vasil writes in her book Ecoholic Home that these bulbs should always be turned off as soon as they're not needed. The story is different when it comes to CFLs, though. CFLs take more energy to start up, so it's only worth turning them off if you're leaving the room for more than five minutes. This means they may not be as ideal for bathrooms and closets, but that is truly up to you and your light switching habits.
Regardless, CFLs always win out, being 75% more efficient and lasting 10 times longer than incandescents. Saving you $$ on your electricity bills every year is just one more reason to make the switch.
I hope this tip was helpful and post a comment if you have a "green" question that I can try to help you answer.
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