No - the screen on the tank determines where that UVB needs to be - fine mesh screen inside w / a distance of 12-15 inches directly above the basking decor -- wide hole type on top of screen 8-10 inches directly above the basking decor- Repti Zoo bulbs are not of good quality please get a Reptisun 10.0 T5 or Arcadia 12% 24 watt bulbI have the fixture inside the tank is that bad?