When you're running a repair bench that handles everything from a simple charging issue to a dead-after-flash motherboard, you need a power supply that doesn't slow you down between jobs. The SUNSHINE P3 DC Regulated Power Supply solves that with three voltage switching modes — 5V, 8.4V, and 15V — built into a single unit, so you stop hunting for a second adapter every time a device needs a different rail.
You get continuous voltage adjustment across the 5V to 15V range with 0.1V resolution, which matters when you're chasing a short or checking current draw on a board that's hanging on logo. The dual display setup puts an LED digital readout and an analog pointer meter side by side, both updating in real time. That combination gives you the precision of a digital number and the instant visual feedback of a needle sweep — useful when you're watching current spike the moment you touch a probe to a suspect component.
Current handling switches between 1A and 5A ranges, letting you pick the sensitivity that matches the job. Low-current mode helps you catch a short circuit early, before it damages an IC, while the 5A range covers higher-draw testing on larger boards. Voltage output accuracy sits around ±0.1V, with load and voltage stability rated under 0.01%+3mV, so the reading you see stays consistent even as the load on your test bench changes.
Inside, the SUNSHINE P3 runs on a pure copper transformer with thick winding and high-grade silicon steel sheet construction. That build keeps the output stable under sustained use and reduces the overheating risk you'd get from a cheaper switching supply on a long bench session. Vents on the housing pull heat away from the internal components, so the unit stays cool through back-to-back repair jobs without derating.
Protection circuitry covers short-circuit, overvoltage, and overload conditions, which matters most when you're powering up a board with an unknown fault. If a technician grounds a component or hits a dead short while probing for a jumper point, the P3 cuts output before the fault can spread further into the board. That protection layer is what separates a bench-grade regulated supply from a basic charger — you can run diagnostic current straight into a suspect circuit without gambling on the rest of the board.
A dedicated USB charging port on the front panel adds a second use for the unit: charge a multimeter, a diagnostic box, or another USB-powered bench tool while the main output stays occupied testing a device. It's a small addition, but on a busy repair counter it means one less power strip clutterng your workspace.
This variant ships configured for European 220V AC mains input (220V ±10%, 50Hz), matching the wall supply most workshops run on. Operating temperature range is rated 0°C to 40°C, which covers year-round use in a typical Pakistani workshop environment without special cooling.
For day-to-day repair work, the P3 fits naturally into board-level diagnostics — checking whether a phone draws current at all before you commit to IC change, confirming a battery connector isn't shorted before reassembly, or supplying a stable voltage rail while you test a component off the board with a bench harness. It also pairs well with test boxes and ISP pinout tools already on your bench, since a stable, adjustable power rail is often the first check before you move to software-level diagnosis.
Net weight comes in around 2.74kg, keeping it light enough to move between bench stations or pack for a service call. The compact footprint means it won't crowd a bench that's already carrying a soldering station, microscope, and hot air rework unit.
If your workshop handles a mix of dead phone diagnostics, charging issue troubleshooting, and board-level repair, having a dedicated regulated power supply on hand removes one of the biggest bottlenecks in a technician's workflow — waiting to confirm whether a board draws power at all before deciding the next repair step.
