Reptile & Amphibian Forums

There is an inordinate amount of information about UVB lighting and reptiles. I've always used flourescent but am considering switching to mercury-vapor bulbs. I am looking for acutal experience with these bulbs (no, "I heard from a friend who has a girlfriend with a cousin that once met some guy who knew a person that had one explode on them." kinda thing). I have heard that they have a tendency to blow out if moved while on, and that they may actually give too much UVB. I have also read one report of chameleons being rendered less fertile by these bulbs. Please tell me of your experiences with these bulbs. I have 3 dragons that need UVB. Thanks!!!

Sorry, I have no experience with MVB, and that is because I have read numerous pages on where its actually bad for humans to be in contact with its rays for extended periods of time.. whether this information is viable I have no idea, but this was a research topic and supposedly was scientific research, but who knows, alot of people say different things. I know MVB's last longer and give out a great amount of UVB in longer distances, but that I cant be sure of either, its heresay. I am sticking to my 10.0

I use the T-Rex 100watt Flood bulb and it works fine. I actually prefer not having two separate light fixtures (one for heat and one for UVB). Its important that if you do get a MV Bulb, that you have a ceramic fixture w/ clamp or stand as these bulbs need to be angled directly down. I use an adjustable stand (found at most herp stores) which works out great because you can adjust the height which is critical with these bulbs. I also recommend a digital probe thermometer for accurate temps because these bulbs are very efficient in heating. So far, my Beardie is doing very well, eating and moving bowels daily, and her orange color is really starting to show now. Hope that helps.

Alex

I have used both.. I am using a mvb on my water dragons and don't see any difference between the two types of bulbs. I have over the past few years used most types available and I think its a person preference. The all in one is a good idea, it makes things easier, but those bulbs do get very hot, so be very careful when you are working near it or if you have children. I have noticed one thing with these bulbs that concerns me. When I am in direct contact (within 6/8 feet of where its located) my eyes hurt and I get a bad headache, I never had that with the other types. I also took a nasty burn just last week, because the lamp was not secure and it was about to drop, so I tried to catch it.. big mistake. So good luck with your research, Either way, I wish you well with your reptiles.