Zilla Incandescent Spots pinpoint light and heat in any area for a more dramatic visual effect. Spot heat lamps create focused warm zones, allowing reptiles to move away from the heat source as their body temperature changes. Heavy-duty filaments yield more hours of service from every bulb.Provides more focused ambient heat without disruptive visual lightGentle glow produces little visual light allows for viewing nocturnal habits and shy species activitiesPinpointed light and heat allows reptiles to easily move away from the heat source and regulate their body temperaturesHeavy-duty filaments yield hours of performanceRecommended for use with Zilla Reflector Domes