Zilla® Incandescent Bulbs feature heavy-duty filaments that yield more hours of service from every bulb than the average filaments. Provides light and heat that encourages reptiles to bask and regulate their body temperature Creates a natural environment for reptiles by simulating the daytime sun Full spectrum lighting enhances natural colors of the animal and environment Heavy-duty filaments yield hours of performance Recommended for use with Zilla® Reflector Domes Available Sizes: 100 Watt / 150 Watt