As Bill said, no special lighting is needed for the frogs.
If your lighting only needs to create a small amount of temp in the tank, then Compact Florescents work great for the plants if, as Bill noted, 6500K color temps are used.
13 watt CFLs are good on a horizontal setup and if the tanks are vertical, then 23 or 24 watt CFLs will get the light to the bottom.
Keep in mind that temp can be changed by raising or lowering the lighting.
Another good lamp choice is T5HO lighting. T5HO are more expensive but really puts off some good wattage. Note the "HO" since T5 and T5HO are not the same.