Zoo Med Repti Basking Spot Lamp 40W is a low-wattage basking bulb designed for smaller terrariums or reptiles that need moderate heat. It creates a focused beam of light and warmth, raising the basking site temperature and providing UVA for your pet’s well-being. With its double-reflector design increasing efficiency, this bulb helps your reptile regulate its body temperature and enjoy a bright day spot in the tank