Manufactured by Sunlight Supply Inc. Largest family of reflectors in the industry at 38 1/2" L x 29 1/2" W x 12" H. 95% reflective European aluminum interior offers excellent reflectivity and diffusion. The exterior is a powder-coated galvanized steel body.Completely sealed with gasketed tempered glass and retention bars (Patent Pending: 12/387432) to hold glass tightly in place.Maximum air cooling with built-in 8” fittings and EZ Breeze® aerodynamic junction box. Integrated socket & 15' lamp cord.Bead ring to hold ducting firmly in place now included!US Patent No.: D570295 & D613900 / Patent Pending 12/387432.NO FEDEX OR UPS GROUND.