I'd suggest not getting the mesh cutout, or using the heat lamp. I ended up covering the mesh with foam insulation to keep the heat in and tossed the heat lamp, and then the ceramic heater because both sucked out all the humidity in the tank, and I had to spray the tank all the time. I got a radiant heat panel now and I am very happy with the results that I get from it. I haven't sprayed the tank since I got it, and the temps stay pretty consistent.