To save energy and save some money on the electric bill, we completely replaced the normal light bulbs in our house with compact florescent bulbs. We used mostly Sylvania compact florescent bulbs. To date, over twenty five of them have blown out already. On the packaging Sylvania claimed that the bulbs would last for five years, but we have averaged less than six months per bulb before the blubs blew out and needed to be replaced. We contacted the company, and they said they were surprised that the bulbs did not last longer and sent us five more bulbs (all of which have since burned out). They were pollite, but since these bulbs are much more than regular light bulbs we certainly expected that they would last longer than a regular bulb. We really like the idea of saving energy and money, so we are not giving up on all compact florescent bulbs, just those from sylvania and their other brand, bright effects. We have switched to Costco's compact florescent bulbs and have not had any problems with them so far.