QJ-PS30SW I Switching Power Supply DC Stabilized Power Supply 13.8V 30A For Car Radios Transceivers Features: -DC voltage-stabilized communication switching power supply: specially designed for communication equipment. Fixed 13.8V output. With pointer display. Cigarette lighter socket with over-current and short-circuit protection -13.8V voltage output, stable and reliable: 13.8V stable output, maximum withstand current up to 30A, providing reliable power supply for vehicle-mounted or short-wave radio -Pointer display, accurate and fast: the power supply adopts pointer display mode, accurate reading, fast response, voltage and current indications can be switched by one button, easy to use -Dual-purpose terminal socket, convenient and practical: power supply output adopts dual-purpose terminal socket, which can be used with copper lug or banana power cord, easy to plug and unplug, safe and firm -Large-size cooling fan, safety guard: large-size cooling fan provides a safe and stable working state for the internal components of the power supply, and easily copes with long-term continuous operation of high-power radio -Lightweight size: compact and light weight. he internal circuit is designed with over-current and short-circuit protection, and the unique noise reduction knob can be used to eliminate possible noise in the communication system and provide a lasting and safe working environment Technical Specifications: -Input voltage: 220V AC -Output voltage: 13.8V DC -Output voltage accuracy: