Fluker's Incandescent UVA Blue Daylight Heating Bulb for Reptiles and Amphibians offers a bluish tint that provides both light and warmth for your pet’s terrarium. It simulates natural daylight to support normal activity and basking, while the blue coating helps create a bright yet gentle light that doesn’t stress animals. Use this bulb to maintain proper daytime temperatures and illumination for diurnal reptiles like iguanas, bearded dragons, or water dragons. Available in Multiple Wattage Options. The larger the terrarium the larger wattage options are recommended.