bench adjustable power supply (30V/10A),DC switching supply, encoder-regulated laboratory with USB fast charging interface

【Encoder Knob & Output Button】 Adjust this DC power supply via the encoder knob. Voltage and current can be preset with no load connected. The output button lets you tweak parameters during product testing for safer, more convenient operation. It also supports quick output toggle to cut power instantly. 【OCP Short Circuit Protection】With OCP enabled, the supply cuts output and triggers a buzzer alarm if the load short circuits. Clear the short fault, then press the output button to resume power, safeguarding your connected devices. 【4‑Digit LED Brightness Adjustable】This bench power supply delivers high precision: 0.01 V voltage resolution and 0.001 A current resolution, with automatic power calculation. Adjust the LED brightness easily: long‑press the output button to enter settings, push the encoder to select between two brightness levels, then rotate it to set your preferred brightness. 【18W Independent USB Fast Port】Built‑in standalone 18 W USB fast charging port automatically negotiates power to match your device’s supported fast‑charge protocols. Compact at 7.48 × 3.54 × 5.9 inches and weighing only 2.47 lb, it keeps your workbench tidy. 【Multi Protection】This variable DC power supply features short‑circuit, over‑voltage, over‑current and over‑temperature protection. The cooling fan activates at 50 °C (120 °F); if internal temperature exceeds 75 °C (180 °F), output shuts down automatically to prevent thermal damage. Comes with a 1‑year warranty from the date of purchase.