CONVERTS AC TO DC: The Pyramid Bench power supply features a linear/regulated design. Provides convenient and reliable AC-to-DC Power conversion (12V DC) W/ constant source of DC voltage. Works w/ cellular phones, CB radio, scanner, ham radio, etc SCREW-TYPE TERMINALS: Features universal hardwired Screw-Type connection terminals that ensure compatibility with a wide range of devices, equipment, and components. Used for component and device equipment testing, operation, and performance PLUG-IN OPERATION: The simple plug-in operation provides a constant source of DC voltage, allowing for quick and consistent power conversion. Switch-activated power control eliminates the need for an external battery or additional power source SHORT-CIRCUIT PROTECTION: Equipped with built-in electronic overload & short circuit protection to ensure the safety of the operator & any connected electrical devices. The fuse is also protected with auto reset. Safe for tabletop or desktop placement