HP Compaq W1952a 18.5 inch Diagonal LCD Monitor. Display diagonal: 469.9 mm (18.5 "), Response time: 5 ms, Display brightness: 200 cd/m². Weight: 2700 g. Operating relative humidity range: 20 - 80 %, Operating temperature range (T-T): 5 - 35 °C. Certification: ENERGY STAR qualified; EPEAT Silver. Dimensions (WxDxH): 446.1 x 170.2 x 339.5 mm, Power requirements: Internal power supply; Power consumption: 24W maximum; 18W typical; Standby mode: 0.5W, Security features: Security Lock