Image sensor: 1/3-inch Sony Color CCD Horizontal resolution: 420TV Lines Signal system: PAL/NTSC Picture pixels: PAL: 500(H) x 582(V) NTSC: 510(H) x 492(V) LED No.: 18 pieces Ranging distance: 15-20m Infrared wavelength: 850nm S/N ratio: >48dB Lens: 3.6/6mm Electronic shutter: PAL: 1/50 to 1/100,000 seconds NTSC: 1/60 to 1/100,000 seconds Gamma correction: r=0.45 Sync system: Internal synchronization Gain control: Auto White balance: Auto Backlight compensation: Auto Minimum illumination: 0Lux (IR ON) Video output: 1.0Vp-p, 75Ω Power supply: 12V DC ± 20 % Operating temperature: -10 to +50 degrees Celsius Dimensions: ?117.5 x 69mm Other model: TWD-ID009: 1/4-inch Sony color CCD D/N Dome IR Camera, 420TVL,18pcs LEDs,3.6/6mm Lens,12V DC ± 20 %