For those of you who get your reptisuns at petco or petsmart PLEASE check the actual tube before purchasing!! I bought the 18" reptisun 10.0 at petsmart but in the box was a reptiGLO 5.0 which I didn't realize until the next day.
I bought a PowerSun mvb from petsmart only to get home and find the box EMPTY. I've also wondered (since they are very expensive) if I've wound up with a bulb that had been replaced with a used one, and returned as new.......