Precision Variable DC Power for Electronics Development and Testing

A variable bench power supply is an essential piece of equipment for any electronics lab, makerspace, or development bench. This unit provides continuously adjustable voltage (0–30V) and current (0–5A) with independent controls — ideal for powering and testing circuits, charging batteries, and running electronics under controlled, protected conditions.

• Output Voltage: 0 – 30V DC, continuously variable
• Output Current: 0 – 5A DC, continuously variable
• Display: Dual 4-digit LED — simultaneous voltage and current readout
• Regulation: Linear regulated — ultra-low noise, stable output
• Ripple: <1mVpp typical at full load
• Output Terminals: 4mm banana jack binding posts (positive, negative, ground)
• Protection: Adjustable over-current limiting + short-circuit protection
• Cooling: Variable-speed fan — quiet at low loads
• Input: 110/220V AC switchable
• Dimensions: ~220 × 150 × 130mm

Perfect for powering Raspberry Pi projects, Arduino circuits, motor drivers, LED strips, and custom electronics at adjustable voltages. The current-limit function protects sensitive components from accidental overload during development.