... than 50DBLess than 48DBElectronic Shutter1/1~1/10,000, (22 steps)1/50~1/10,000 (PAL, Manual 8 steps) 1/60~1/10,000 (NTSC, Manual ... of high quality array IR LEDIlluminate Distance 150mHorizontal Rotation Speed 1 ~ 180º/sHorizontal Rotation Range360ºTilt Rotation Range 94ºAuto FlipHorizontal ...