The Omron SLL-28H is a lamp socket assembly designed for mounting E39 base, high-intensity discharge (HID) light bulbs into lighting fixtures with Mogul Edison base. It is made of high temperature, heat resistant thermoplastic and features snap-in brackets and a captivated mounting nut for secure mounting. This socket assembly has a glazed porcelain center contact, four strain relief mounting holes, a NEMA rated hot contact, and a neoprene grommet for protection against dust, dirt, and moisture. The wiring screws on the socket assembly are UL approved and the contacts are silver-plated copper alloy, ensuring a long life. This lamp socket assembly is the perfect choice for long-lasting, safe, reliable lamp mounting.