Incandescent bulb wattage to halogen/spotlight? My basking bulb just broke-the 4th reptile brand basking bulb I've tried in around a month. I want to go normal bulbs now (like from a hardware store). And of course, normal incandescents are going exstinct. So what wattage halogen bulb would give off about the same amount of heat as a 100 watt incandescent? I would really like to know soon because my Beardie is living without a proper basking spot.