are the coil lamps and the active UV heat lamps that are sold by ESU for a lot of money the same as the self ballasted mercury vapor bulbs, and the coil lamps made by GE? by same i mean do both brands produce the UVA and UVB? or do only the ESU ones do that? are they coated with something to produce UV rays? if so, what?
Tre'
WhiteHill Reptiles

