Pure flat color tube: 21 inches (51cm) System control mode: Mult-Language Bus control: I2C Scan mode: 60Hz / 75Hz progressive scan, 75Hz / 100Hz interlaced scan Scan line: 1000 TVL Wide voltage design: 160~250V AC Power consumption: 130W Dimensions: 504mm x 420mm x 512mm Weight (Gross): About 32kg Horizontal scanning frequency: 33.75KHz Vertical scanning frequency: 60Hz / 75Hz / 100Hz / Quality standard: ISO9001, China Compulsory Certification (3C) Environmental standard: All components and package materials conforming to international environmental protection standard Remote/Cables controlle: Easy-to-use menu with GUI