Reptiglo uvb rays are of course better than no uv at all. So they would have grown if you positioned it properly.
I have been using reptiglo 10.0 18" for a month (my reptisun 10 blew up the 4th day for some reason and could not find another in my area of australia) for my baby bearded at a good 10" away, right under my 40w light bulb. My baby is thriving, eating like a pig, running around, pooping daily during
bath time, no eye problems (my baby hardly ever looks up) and growing! Nearly an inch in the last week alone
Lots of people on this forum will say reptiglo fluros are bad, i believe it may well be if you don't position it well.
As long as you keep it 10" away, under the bright light, and have nothing interesting so it may look up then it will be sufficient.
Reptisuns have more room for error so is better if you can get it.