18 Channel 12 Volt DC Output 20A CCTV Distributed Power Supply Box for Security Camera with AC Plug and Lock for Security Cameras, DVRs, CCTV Power Supply (20A 18-Channel)

User Manual: Download About This Item Unboxing Video Product Description {Safety}Lightning protection, overload protection, short circuit protection. Each port has a separate fuse and a separate LED indicator.{General protection} Each output has an independent PTC fuse and LED indicator, lightning protection, working longer than 100000 hours, when a problem occurs, only the independent output is affected, and other outputs still work.{Short circuit protection} When a short circuit occurs, the independent PTC fuse will open the circuit, and when the condition is removed, the PTC fuse will automatically resume closing.{High voltage protection} When high voltage occurs, the surge protection will be broken down to protect the connected equipment.{Over-current protection} When an over-current occurs, the power supply will automatically switch to the self-protection state, and when the condition is removed, it will switch back to the normal state.   Specification: Input Voltage