Our Vibrant Life 100 Watt Basking Bulb provides the radiant heat (infrared light) that reptiles need to thrive. Reptiles are ectothermic and depend on their environmental temperature to regulate their core body temperature. Our bulbs concentrate heat and light for basking reptiles so they can achieve the necessary temperature to be happy and healthy. When picking a bulb simply refer to the easy-to-read reference table to simplify selection based on the distance the bulb will be placed from the reptile. Check out other products from Vibrant Life like aquarium hoods tank ornaments gravel lights and more for all your aquarium needs. Your reptilian friend will love basking under our Aqua Culture 100 Watt Basking Bulb. Help your pets live the Vibrant Life! Our products are specially crafted with one goal in mind seeing your pet at its very best. With a variety of offerings designed to keep animals healthy happy and energized Vibrant Life stands out as the brand that truly puts your pet first.