Model 4303   Signal System NTSC   Scanning System 2:1 Interlace   Sync. System Internal   Image Sensor 1/3Inch Sony Super HAD CCD   Total / Effective Pixels 510 (H) x 492 (V), 250K   Horizontal Resolution 420 TV Lines   Lens 3.6mm Fixed Board Lens   Video Output 1.0Vp-p, 75 Ohms, Composite   S/N Ratio More Than 48dB   Min. Illumination 0.3 Lux   Shutter Speed 1/60~1-100,000 Sec.   Day & Night N/A   White Balance Auto   AGC Built-in   BLC Built-in   Supplied Voltage DC12V   Power 500mA Recommended   Dimensions 3" Diameter