Feature: 1. CLEAR DISPLAY: The 30V 5A DC desktop power supply is a professional power regulator with high resolution of 0.01V and 0.001A, which you can easily adjust in the 0‑30V and 0‑5A ranges. The backlit 4 bit LED display provide a more accurate reading of voltage and current values that are clearly visible even in low light conditions 2. VARIOUS GUARD: DC power supply use excellent ABS and iron materials and reliable circuit design, with short circuit guard, overload guard, ground terminal, temperature control fan and other multiple guard functions to ensure performance and extend service life 3. SET VALUES VIA ACCURATE ENCODER KNOBS: Just set the voltage and current, not adjust. You can press the voltage and current encoder knob to select the number you want to adjust, and then rotate the knob to set a value between 0 and 9. Each number can be easily set with a accurate encoder knob. Encoder switches replace potentiometer switches, making your job easier, more accurate, and more efficient 4. APPLICABLE SCENARIO: Variable DC power supply is suitable for laboratory, school, maintenance, electrolysis, electroplating, brush plating, lamp testing, aging testing, battery charging, home DIY and other requirements. The 5V 2A USB port can charge your phone and provide power to the device you need to repair, without worrying about running out of power 5. STABLE AND RELIABLE: Adjustable DC power supply support leakage guard and thermal guard. The use of excellent electronic components to provide reliable working conditions and effectively extend the service life of product Specification: Item Type: DC Power Supply Model: LKD3005 Material: ABS and iron Input Voltage: 110V/220V(adjustable) Output Voltage: 0-30V Output Current: 0-5A Operating Temperature: 0-40℃. Package List: 1 x Main Unit 1 x Power Cord 1 x Test Wire 1 x User Manual