Seen a dimmer on ebay so gawni buy it. A went to reptile shop today and as a droped n broke my 100w bulb! got another basking bulb, arcadia halogen 75w.So am using that just now,the woman in shop says 100w should of been enuf for my temps to reach required temp? Still cant get temps right tho? Even with this 75w my basking away up2 128f and cool 70f. A cant seem to get basking down n cool end up. Ave tried using with and without thermostat but no joy. Am currently using thermostat as basking goes away up2 140fsh without it (Basking side) . A started with probe from thermostat in middle of viv at the back but temp to hi. So a moved it closer n it went down a bit but cool end was still to low?