Lighting is definately not my forte'. I am still using a light from when I had fish in the tank. It doesn't even have any info about the uva or uvb output if it even has any. I am glad you brought this up because I am also confused when it come to my lighting.
If anyone reads this that has knowledge on lighting I too have a questions.
The packaging on the light bulb, I've kept for 12 years says, Colormax by Coralife, fluorescent 20 watt freshwater aquarium daylight lamp with color-enhancing phosphors. Other specifics says it enhances the natural beauty of freshwater fish and plants, full-spectrum light that simulates the sun at high noon. There is a graph thats shows the wavelength(nm) between 287-793 and the relative energy output peaks are between 450 and 620 nm.
In my 10 gal tank I have, for the time being, a regular fluorescent bulb for under a kitchen cabinet to light the counter tops, it's all I could find in our zillions of boxes from the move.
Hope this can help anyone with some knowledge determine if the bulbs I am using are sufficient for my Gray Tree frogs either for now or to keep permanently.
Rae, I think that some of the supplements sold for frogs have the additional D3 vitamins. I saw it somewhere, possibly at Josh's frogs, check it online, or hopefullysomeone will answer our questions with that info too.