there are regulations that limit the amount of uvb that interior residential lighting is allowed to produce, and they are manufactured accordingly,(although all do not adhere) but it is unlikely that any bulb intended for residential use would have the proper balanced amount and wavelength of uvb. of course the only way to really know would be to measure with a uvb meter, reptisuns and other specialty bulbs are not considered interior residential lighting and are therefore not subject to the same manufacturing limitations. reptisuns are manufactured from a pure quartz tube, which is part of what makes them able to generate the proper amount and wavelengths of uvb. how cheap of bulb are you looking for? a new 2 foot reptisun 5.0 can be had on ebay for $20.deliverd (just bought one).the cheapest uvb bulb, is the one that works that works (regardless of its purchase price)/ the most expensive is one that doesnt (regardless of its purchase price)

[ Reply To This Message ] [ Subscribe to this Thread ] [ Show Entire Thread ]