I am looking to get a leopard gecko within the next week or so; and last night I picked up the Zilla basic desert kit from Petco. I figured to go ahead and set up the enclosure so I could monitor the temp and humidity for a couple of days before aquiring the Leo. It came with 2 5.5" reflector domes and a 50 watt Day white light bulb and a 50 watt black night light bulb. I had the white light on for approximately 3 hours lastnightto try to get it up to temp; and it was at 80.1 degrees F when I turned it off and turned on the night light. The black light was able to hold the temp around 77-78 overnight; and switched them again about 6:30 this morning. As of right now; the highest temp reading I have gotten is about 85 degrees. I am using a zoo-med digital thermometer w/ probe. I have the probe set up under the eco-carpet that came with the kit right under the half-log hide spot. I was wondering what you could possibly suggest as ways to help boos the temp the extra 5-6 degrees to put it at around 88-90 degrees as needed for a leopard gecko. I am thinking maybe investing in a UTH; but would that be overkill and cause the temp to rise higher than needed; or maybe try replacing the bulb to a higher wattage (the domes are rated for 60 watt bulbs). I would appreciate any advice on this matter.