These compact Florescent bulbs put out a lot more light per watt and thus gives me the additional light needed in the winter that the incandescent bulbs can't without over heating the tree. These last 10,000 hours vs 1000 and the risk of loosing a tree do to bulb failure is a lot lower. I also get CFL's free when my customers upgrade there CFL's to LED's. Last my CFL's are daylight rated.
My New Zealand lemonade will get a horizontal light bar of 8 LED's over top in a week or 2