The 8 in Magnum XXXL? now features new improved photometric performance. 95% reflective German aluminum interior offers excellent reflectivity and diffusion. Completely sealed?features double gasketed glass (between glass & reflector and glass & frame) and hinged frame to hold glass tightly in place. Maximum air cooling with built-in fittings and EZ Breeze? aerodynamic junction box. Bead ring to hold ducting firmly in place. Swing Stop? retention cable keeps glass from abruptly swinging down. Captured thumb screws & closure mechanism for ease of use and excellent sealing. The exterior is a powder-coated galvanized steel body. Comes with built-in level for easy, consistent, level hanging. Integrated socket and new detachable 15 ft lamp cord. Easy carry handles. US Patents: D613,900, D698,986, D698,628, D717,636, D726,116 D570,295, D736,450. US Patent Pending: 29/509,534. Chinese Patent: ZL 2013 3058 2331.7.