This lamp is a quality, very high output UVB source. It will only be sold to zoos, qualified herpetologists or individual hobbyists who own a UVB meter. Most Hobbyists should use our regular Mega-Ray� Flood Lamp range (EB or SB) The Mega-Ray� Zoo SB is a 160 watt self- ballasted par38 clear faced mercury vapor bulb that will produce useable UVB in a 2 foot circumference at the recommended distances although the highest reading is centered.

MINIMUM distance setting of 3 feet (approx 1 meter) will produce approximately 250-300 microwatts per square centimeter (uW/cm2) of UVB and 2,000uW/cm2 of UVA.
WARNING! Do not set this lamp closer than 3 feet. Reptiles should not be exposed to more UVB than they would be in their natural habitat (350 - 400 uW/cm2 maximum).

MAXIUM distance setting of about 8 feet will produce approximately 20 to 30 �W/cm2 of UVB. We recommend two lamps be used if this distance is needed. (Our MegaRay EB kits run more efficiently than the self ballasted bulbs, and therefore different readings may be obtained between the two.)

Please keep in mind that the spectral iridescence of the Zoologist bulb has almost twice the vitamin D3 IU capacity as the natural sun, and therefore will produce great circulating D3 at lower UVB readings. Please read the report at under the heading "Vitamin D3 and LUX meter readings" to get a greater understanding of the subject.
Warning: Very Little Heat

Sale of this bulb is restricted to those people who have a UVB meter as the UVB output of this bulb can do more harm than good in the wrong hands.