Fluker's incandescent light bulbs provide the necessary heat and light for reptiles to thrive. As ectothermic animals, reptiles rely on their environment for temperature regulation, and insufficient heat can lead to chronic infections. To determine the appropriate environmental temperature range (ETR) for your pet, consult with a pet professional and refer to Fluker's easy-to-use reference table. Additionally, Fluker's 5.0 UVB and 10.0 UVB Sun Glow Coil Bulbs offer both UV and visible light, mimicking natural sunlight for optimal health and behavior in reptiles.