Folds down 90° in either direction along the plane of attachment plate of the mount. Vertical height 13-1/8”. Base dimensions: 2-1/4” x 5/8”. Vertical Mount. Fits Perko Figs. 1184 & 1284. Black polymer top and base with clear polymer lens. Gold plated contacts. Fold-down, adjustable angle. 2 mile visibility. Use on power driven vessels under 12 meters in length. 3/4” diameter anodized aluminum tube. Uses #8 fasteners. (2) 12 volt bulbs included.