Mega-Ray Mercury Vapor Bulb, 275w

Mercury vapor bulbs simultaneously produce heat, light, and UVB for your reptile. Mega-Ray Mercury Vapor Bulbs are the most reliable mercury vapor bulbs available in the US!  Using cutting edge technology coupled with 25 years of dedicated research and testing, Mega Ray has significantly reduced the huge decay rates often seen in other mercury vapor lamps. While other bulbs decay as much as 80%, the Mega Ray Mercury Vapor Bulb decays less than 30% over the life of the bulb. The 275w Mega-Ray Mercury Vapor Bulb is a self-ballasted PAR-38 True Frosted Flood Lamp. A true flood lamp, it will disperse usable UVB in a 30" circumference at a 20" distance. The Mega-Ray Mercury Vapor Bulb must be replaced once every 18 months to maintain good performance. Minimum Distance: 34" Maximum Distance: 46" Instructions for Use: We strongly recommend using mercury vapor bulbs with a Solarmeter 6.5 to make sure your reptile is getting the right amount of UVB. Use with a wire lamp fixture rated for at lea