Just some hints for the MV bulbs.
1. Make sure they are pointed down! They need to be on the top of the cage pointing down, not at an angle or perpendicular across the cage. I dunno why this is, but thats what it says in the instructions, so there must be a good reason!
2. Make sure you are using a ceramic socket, not a plastic one. Once again read this in the instructions, and this is a good precaution that is not very expensive, you can get ceramic sockets at lowes or home depot for a few bucks, so it shouldn't empty your wallet the way reptile brand sockets will.
3. Make sure that when you spray or mist, none of the water comes close to making contact with the bulb, this can crack and break the bulb (I heard about this, didn't listen, and now have learned it first hand, don't make the mistake I did!)
4. Last, make sure all your connections are secure, you aren't overloading a powere source, and don't continuously flip it on and off. If you are going to turn it on, make sure it will be on for a few hours, if not, use a cheap incadesent for the short period of time.
By following these guide lines I have never had a problem with my zoo med mercury vapor bulbs, and they have definetely benifited my lizards. Sorry this is so long, just had to share my advice b/c these bulbs work and are durable, reliable, and extreamily benificial when used properly. Good Luck!



) I do everything the directions say: it sits on top of her cage, is on a timer to go off/on only once a day, no overload, 10" ceramic fixture dome, and is protected from humidifier mist (which is also on top of cage) by a plastic baffle.