The Sun System Low Profile Magnum Reflector with dimensions: 41L x 29.9W x 5.6H. Low Profile Magnum Reflector Allows Maximized vertical growing space with this innovative design. SunSystem quality American made features with SwingStop glass lens safety cable, 95% Reflective German Aluminum. 15 foot lamp cord. Unique low profile design allows for maximum vertical growing space in low ceiling applications. Integrated 8 in oval air-cooled fittings with bead ring for easy and secure air tight duct installation. State-of-the-art 95% reflective German aluminum interior offers unparalleled output, reflectivity and diffusion. New added feature, a Sun System® reflector level for easy, consistent, level hanging. Integrated mogul base socket and 15 ft lamp cord. Completely sealed — features double gasketed, tempered glass and hinged frame to hold glass tightly in place. Hinge feature allows glass cover to swing open for easy access or quick removal. Swing Stop™ retention cable keeps glass from abruptly swinging down. Galvanized steel housing with durable powder coat finish. Captured thumb screws & closure mechanism for ease of use and excellent sealing. Requires no special ducting or duct attachments, Flexible ducting is easily pushed into place to fit the duct flanges.