Lightweight and versatile, CP1 features a universal clamp that provides a secure grip on any surface shapefrom 1/2'' pipe to 4'' wall. Complete with 12 volt plug-in transformer with in-line switch and 10 cord. Chrome arms with black or white clamp. Specify 50 or 75 watts. 12 volt, MR16 lamp not included. See accessory for maximum wattage usage.