White painted LED Lightbar connector box is a UL approved shallow junction box for making lightbar connections to house wiring. This kit provides multiple installation options for use with Maxlite Plug-And-Play 120V LED lightbar accessory cables or rigid and flex conduit or romex cable. The physical dimension of the box are 2 inch wide x 4 inches long x 1.25 inch high. Most building codes require a listed junction box for branch conductor wiring termination as well as for in wall installation of a lighting fixture. The Maxlite shallow junction box kit is a great option with varied uses.