DC Power SupplyNORJIN DC Power Supply delivers a fixed 13.8V output and up to 30A peak current, ideal for powering CB radios, HAM radios, scanners, and all 13.8V DC-compatible devices. A reliable choice for home labs, workshops, and communication setups. Noise Offset Control & Built-In Cigarette Lighter SocketThis DC bench power supply features a Noise Offset knob to help eliminate pulse noise. Includes a convenient 12V cigarette lighter socket for powering portable car devices like air pumps, coolers, and GPS units. Short-circuit ProtectionEquipped with built-in electronic overload and short circuit protection to ensure the safety of the operator and any connected electrical devices. Built-in Cooling Fan& Durable DesignThe switching power supply is built-in cooling fan to prevent the device from overheating. This benchtop power supply features a rugged metal casing, anti-slip rubber feet, and a clear analog display for voltage and current. Quick one-button switc