Zoo Med Repti Basking Spot Lamp Bulb, 150 WattsDouble reflector focuses more heat/light than regular spot lamps.Ideal for use with diurnal reptiles as they have opposite schedules as humans.Increases the overall ambient air temperature and mimics the tropical and desert climates diurnal reptiles are used to.Crafted to last up to 2,000 hours, so you don't have to change often.