UTH.....Which is better?

Ok guys, I was wondering, which brand for a UTH is better? Cobra Heat mats by T-rex or Repti Thurm UTH by Zoo Med? Heres a link to the zoo med UTH: http://www.reptiledirect.com/index.a...ROD&ProdID=111
and heres one to the T-rex cobra heat mats: http://www.reptiledirect.com/index.a...ROD&ProdID=594 . Which is better, I think the Zoo med one was better.....

Zoo med sucks major league!!! I woudl suggest going with the T-rex units.. You can also use flexwatt.. Exo-terra also makes a good UTH and is cheaper then the trex:)

Moved to the caging forum.