Can I give you my spin on trying to find the right light? I find there are many variables to each tank. That makes it a pretty open guess what will be best. We each do it different so what fits for one may be way off for another. Simple things like how high above the water and how long the light is on will make a major difference. Lots more as well but you get the idea that it varies and even the best thought out answer may not be right for you.
What to do? I like to leave as many options open as I can when I buy. I hate buying stuff that is too much for it to work well on my tank. I go cheap with as many options for change as I can foresee.
Have you considered starting with much cheaper bulbs off the shelf at home centers and places where they can be returned rather than ordering specialty items? Two cheap light fixtures from the flea market with two standard bulbs of your choice can give you a real good idea of what works for your tank. I like the idea of two 11W 6500 Kelvin rated bulbs for a ten gallon.
What to do? I like to leave as many options open as I can when I buy. I hate buying stuff that is too much for it to work well on my tank. I go cheap with as many options for change as I can foresee.
Have you considered starting with much cheaper bulbs off the shelf at home centers and places where they can be returned rather than ordering specialty items? Two cheap light fixtures from the flea market with two standard bulbs of your choice can give you a real good idea of what works for your tank. I like the idea of two 11W 6500 Kelvin rated bulbs for a ten gallon.