Product DescriptionDome Infrared Camera (CDHIR23) Model: CDHIR23 Image Sensor 1/3"SONY 1/4"SONY 1/3"SHARP 1/4"SHARP Horizontal Resolution 480 TV Line 420 TV Line PAL: 752(H)x582(V) NTSC: 768(H)x494(V) PAL: 500(H)x582(V) NTSC: 510(H)x492(V) TV System PAL/NTSC IR LED C5 X 23 PCS IR Series Distance 20 M Lens Board Lens 3.6mm/F2.0(Optional) Sync System Internal IR Status Under 10 Lux By CDS Usable Illumination 0.8 Lux/F2.0 (LED ON) IR Power On CDS Auto Control S/N Ratio ≥48dB (AGC OFF) Video Out Composite Signal (1.0Vp-p, 75Ω) Scanning System PAL: 625 Lines, 50 Field/Sec; NTSC: 525 Lines, 60 Field/Sec White Balance Auto Power Source DC12V 250mA