From BES Supply: A Milwaukee M18 Utility Remote Control Search Light Portable Base (49-16-2123B)

Our M18 Utility Remote Control Search Light Portable Base w/ Carry Bag is compatible with our M18 Utility Remote Control Search Light, a first-of-its-kind solution. The MILWAUKEE M18 Magnetic Portable Base is IP56 rated and weather-resistant for outdoor use. The base is also ONE-KEY compatible, so it can always be tracked. In addition to the portable led work light magnetic base, a carry bag is included for easy transportation and use.