HPS lights do put out UVB to the best of my knowledge, but unless you have a solarmeter and can measure the outputs, it is not appropriate to be used in a "blind guess" technique.
Unless you have a solarmeter (and are willing to change out that expensive HPS bulb when the UV output drops below acceptable values, EVEN THOUGH it still generates enough light!). IMHO, the cost here is just not worth it.
Also, temps wil be WAY too high....you are going to have to really elevate that light and/or vent it.
Lastly, it will be too bright unless you have an extremely densely and largely lit cage. In a typical 2x2x4 I would say that it is def too much light.
@Alex: 6500k is the closest to daylihgt and is what PLANTS need, yep. However, make sure you still have your heat(bask) and UVB bulbs as well! 6500K is just for plants (also, you can get it way cheaper in home depot instead of petco)
