Weatherproof precision die-cast Zamak III with heavy, heat resisting molded rubber gasket for positive weather protection. Adjustable arm threaded 1/2" NPT with degree marked aiming quadrant. Fully UL & CSA approved.

USA Made These are heavy duty they weigh 11 oz. each these are unlike the garbage they sell you today..

The box indicates it can be used for cluster lighting, Industrial Vaporlight, Underwater lighting & Opal fixtures.

The date on the box is 1961