Mega-Ray Mercury Vapor Bulb – 160 Watts (120V)

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.

160 Watt Bulb – MINIMUM distance setting of 18” will produce approximately 150-200 microwatts per square centimeter (uW/cm2) of UVB and 900-1200uW/cm2 of UVA. MAXIMUM distance setting of 24” will produce 50-75 microwatts per square centimeter (uW/cm2) of UVB. (Distance is measured from lamp face to basking spot or reptile for optimum UVB and heat.)