Yield Master 6 in Air-Cooled Reflector (24/Plt) Completely sealed featuring hinged glass and double gasket (between glass & reflector and glass & frame) for an air-tight seal. Includes tempered glass, built-in socket and 15 ft lamp cord. Highly reflective aluminum interior for excellent reflectivity and diffusion. Swing Stop® retention cable keeps glass from abruptly swinging down. Captured thumb screws & closure mechanism for e... Note: Ballasts, Lamps / Tubes are available separately.— LTL Shipping Required. — Ships from H: WA, CA, CO, MI, TN, PA, FL USA (No USPS)....more info.