Anyone use these or know how good they are?

That is a new one on me, I've not seen any studies on it. Who is it made by? do you have any links?

I'd always recomend megarays if considering switching MVB.

From what I have read on other forums the Sunseekers do not put out enough UVB. Lots of people have been unhappy with them.

I've read the same and I also recommend the Megaray line from ReptileUV.

I have a sunseeker, or I used to. It does fine as far as putting out some good light, but they go out SO FAST that it's not worth spending your money on. Power Sun 160w's do all of the jobs I need them too. ThebeanFarm has em for 40$ or you can waste your money at petsmart for 80$.

AP do you have a solar meter?

My friends who own a local shop have one. They paid like 375$ or something on it. They said that the SunSeeker does ok, but it fails in comparison to the PowerSun and it's just a waste of money. I'm a firm believer in the PowerSuns. I think Rob said that the Sunseeker put out 18-20% less UVB than the SunSeeker.

the megarays out perform the powers suns by some way. So if the powersuns out do the Sunseekers they sound like a complete waste of time

Check out
http://www.uvguide.co.uk/mercvapourfloo ... edpowersun
http://www.uvguide.co.uk/mercvapournarr ... uvmegarays
http://www.russiantortoise.org/uvb.htm