This is the black plastic cap that fits over the bipins on a tanning lamp to convert to an RDC lamp. These are most commonly used to convert an F71 lamp into an F72 lamp. While the length is slightly different, many F72 booths and beds can use an F71 lamp with these ends attached, as the lamp holders are spring loaded. We can't guarantee it will work perfectly in your bed. This lets owners of beds that only use F72 lamps to use F71 lamps, which are more widely available. These will NOT work properly in older SunTana, Puretan/Tanfit or other beds where the current lamps fit TIGHT. This will NOT WORK in beds that need F73 lamps! This only works for beds that need F72! NOTE! If your current F72 lamps are in fairly TIGHT, these will NOT work! This adaptation makes a F72 that is actually longer than a regular F72, so you may have to slide your lamp ends out (on models that allow this) or instead choose a lamp that comes in a standard F72 size, such as the Pro Plus. Sold in PAIRS. Order the same number as you have lamps. Save when you buy 24 or more pairs! Less than $1 per pair! Availability: Usually ships the next business day. RDC72x2$1.00, 24 for $19.99 Did you know that we started in 1985, and went online in 1997, several years before any current reseller? No one has more experience or more products than TanningBeds4Less.com. We still have the ONLY Money Back Guarantee in the industry, and our SunMaster beds are 100% built right here in America. Trust us for all your tanning bed, lotion and tanning lamp needs. Your satisfaction is guaranteed.