The Commercial Electronic Ballast Horizontal Hanging Brackets safely hang your Galaxy? or Sun System? 1 ballasts in a horizontal mounted position in a greenhouse application. Commercial grade, bolt-on mounting brackets used to attach your ballast to uni-strut/kindorf framing. Used for a rigid mount applications for additional safety and support. May be adaptable to other strut/framing applications, may fit additional types of electronic ballasts. These brackets are constructed in the USA of sturdy galvanized steel and powder-coated to protect from wear and rust. All mounting hardware is included. Not compatible with Galaxy? Grow Amp? Ballast. U.S. Patent Pending: 29/533,943.