"We have been using ZooMed bulbs for several years now. They have helped bring around some pretty sick lizards we have rescued. All of them are happy and healthy. In my experience of these bulbs, they last a long time. Very, very few ever burn out before their time, and who knows how they were treated before I purchased them. I don't think it is the bulb, ever, but the handling of the merchandise prior to purchase.
Most awesome reptile bulb ever!!!!"