What is the difference in “RDC” and “Bi Pin” lamps?
Inside the lamp, nothing, but they connect to your tanning bed in very different ways. RDC (Recessed Dual Connector) lamps “spring” in and out, where Bi Pin lamps have two pins that slide into the lamp holder, and you twist the lamp into place, much like a 4 foot office type lamp. There are no advantages in tanning with either lamp. RDC lamp holders are much more expensive than Bi Pin lamp holders, so they are much less common. RDC lamps are usually 72 or 73 inches long (and some rare 60 and 74 inch varieties) where Bi Pin lamps are usually 71 or 59 inches long. RDC are actually just Bi Pin lamps, with special adapters pushed onto the pins.
