New design built fan and neater for outdoor use Die-cast Aluminum Construction 6-inch Acrylic Dome Low noise design Auto Iris Auto Focus BLC function 360?Continuous Pan rotation 128 presets position 180?Vertical auto-flip to follow object Pan speed 0.5皛100?sec, Tilt speed 0.5皛100?sec 0.01Lux minimum illumination Built-in receiver ,RS485 data communication Auto pan function between 2 preset position Contains 2 cruising tracks ,each cruising track has 16 preset position, dwell time and call speed of each preset position can be set up. Power Source AC220V or AC24V The speed can be adjusted automation