About This Item

• Self-Ballasted Mercury Vapor Bulb.
• For 10 Years, It Has Been Shown To Have The Longest Lasting Uvb Production Of Any Other Mercury Vapor Bulbs Available.
• Promotes The Synthesis Of Vitamin D3 And Prevents Metabolic Bone Disease.
• Produces Similar Amounts Of Uvb To Natural Sunlight.
• 100 Watt Bulb – Minimum Distance Setting Of 12″ Will Produce Approximately 150-200 Microwatts Per Square Centimeter(Uw/Cm2) Of Uvb And 900-1200Uw/Cm2 Of Uva. Maximum Distance Setting Of 20″ Will Produce 50-70 Microwatts Per Square Centimeter (Uw/Cm2) Of Uvb. (Distnace Us Measured From Lamp Face To Basking Spot Or Reptile For Optimum Uvb And Heat.)