MVB is a type of bulb. It has heat\UVA and UVB (replaces natural sunlight).Originally Posted by dembonez
You can get a tube light, but it will only have the UVB, but heat. You can also get a heat lamp that does not have UVB, just UVA\heat.
UV = ultra violet. Types of light waves....
UVB light helps in the body create D3 that is essential in processing calcium.
If your body is creating D3 natually because of sunlight or UVB bulb - then you DON"T want to suppliment D3 as it will lead to too much Calcium processing.
But if for some reason, you don't provide UVB, then you should include D3 artificially via Calc+D3 powder for example.
Now I may not have all that 100% correct as I need to get back to work... but should give a bit more to chew on... Look up wikipedia for a more detailed understanding of UVA, UVB, and how D3 is used....
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