Zoo Med PowerSun UV - UVB a self-ballasted mercury vapor lamp which emits UVA, UVB and heat all in one lamp! Fits into a standard ceramic socket. (No ballast needed.) The 160 Watt projects UVB up to several feet from the lamp's surface and is ideal for large terrariums or bird aviaries. Features include quality nickel plated threads to prevent against corrosion, and a full one year warranty!
When the bulb arrived I wondered if it was going to work because it sounded like a loose fillament. But when I turned it on, it worked fine. But in a couple weeks it seemed to dim. Then in approx, 5 weeks it wouldn't turn on without tapping the bulb. When we called to see if we could get a replacement it had been over the 30 days so we will try to get it replaced by PowerSun's warranty.
160 PowerSun by Tortoise Rescuer from Castaic, CA12/10/2011
I love this bulb. It provides great heat while suppling the needed UVB & UVA.