The Galaxy? DE Horizontal Hanging Brackets safely hang your Galaxy? DE ballast in a horizontal mounted position in a greenhouse application. Commercial grade, bolt on mounting brackets used to attach your Galaxy? DE 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. US Patent Pending: 29/533,943.