Almost all full size tanning lamps are T12. Most tanning lamps are measured as a “T12” The T number is the diameter of the lamp, in 1/8th inch increments, thus a T12 lamp is 12/8ths of an inche (1.5 inches) in diameter. (Note the dropping of the letter R if the 160w lamp doesn’t have a reflector built inside).Īnother easily overlooked number that is used for sizing tanning lamps is the T factor. The 100w is the most common, and called HO, or High Output. and only refers to their brand of VHOR lamps.Īn F71 lamp (or any other size) can come in several different wattages. The term VHR is actually a trademarked name of Cosmedico, Ltd. If it is a 160 watt or higher lamp, it might be referred to as a VHO-R or VHOR. If the lamp is 100 watt, it might also be informally referred to as a RUVA (Reflector UltraViolet A). This means they have a reflector built inside the lamp. Some lamps use the number FR71, adding the R. RDC and BI-PIN lamp endsExample lamp ends showing RDC (F73) and bi-pin (F71) tanning bulbs. 99.99% of the time, F71, F59, F78 are all bi-pin, F60, F73, F74 are all RDC (ie: they have the black caps over the pins). There are some very rare exceptions, such as Peacock systems that used a proprietary F73 bipin.
In general, a size comes in either bi-pin, or RDC and not both. In reality, the RDC is just a cap that fits over the bi-pins, and allows it to be used in a different (and more expensive) lamp holder. RDC stands for Recessed Dual Connector, or the equivalent.
The lamps also come in two different styles: RDC and bi-pin. An F71 is actually about 1/8 of an inch longer than a F72, for example. The “F” number stands for “fluorescent”, and the number is the nominal length, although this doesn’t line up nearly as well as you would think. Other sizes, such as F72, F74, F78 and others also exist. The most common sizes are F71, F73 and F59. Tanning lamps come in several different sizes.
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