Features:• Ceiling mount bracket, extend the overall length• Material: AluminumTechnical Specifications:• Material Aluminum• Dimension ?420mmx7800mm(?165”x3071”)• Weight 065kg(143lb)• Load Bearing 2kg(441lb)• Color White• Operating Temperature -40?C ~60?C(-40?~140?)• Humidity <90% RH• Applicable Model DH-PFB220C• Accessory Selection