Attention, after the measures many users, the UV lamps exo-terra do not emit as much UV as what is said. Also, check the lamp emission spectrum: UVB useful for the synthesis of vitamin D3 in reptiles are around 295 nm, and often these lamps the emission spectrum is well beyond (hence " next to the plate "). True, they may be less expensive than the competition, but watch for species with UV REALLY needs (diurnal species and heliophilous like Popona, chameleons, turtles !!!!), do not take this brand !! !