Color IR digital cctv camera with waterproof function Parameter: Picture element: 1/4" Sony CCD Horizontal resolution: 420 TVL Effective pixels (HXV): PAL: 512(H)* 582 (V) NTSC: 512(H) * 480(V) System of signal: PAL & NTSC S/N ratio: >50db IR view distance: 30m Mini illumination: 0LUX (IR on) IR LED parameter: 24 ?5 IR LED life time: 6000 hours White balance: Auto Lens: 6mm Gamma correction: 0.45 BLC: Auto