There should be no clear plastic cover over the bulb as well --- your going to want to eventually upgrade the T 8 to a T 5 they are a stronger bulb for UVB but the T 8 will do for now - please change the T 8 bulb out in approx 6 months I recommend 5 -- w/ a tank of good size like a 75 or 120 gallon you want the 24" fixture Zoo Med w/ a Reptisun 22' 10.0 T 5 or a Arcadia Pro T 5 w/ a 12% bulb --- those are good fixtures and bulbs --