Feature: 1. EASY TO USE: Encoder adjustment, no need for short circuiting, directly preset voltage and current. USB fast charging interface, efficient output, stability, and convenience. 2. INTELLIGENT TEMPERATURE CONTROL FAN: When the internal temperature of the power supply reaches a certain temperature, the fan automatically heats up. 3. SAFE TO USE: DC power supply supports full load operation, 24 hour load, not easy to burn the machine. 4. ALUMINUM ALLOY MATERIAL: Made of premium aluminum alloy material, the power supply is resistant to falling, wear resistant, durable, and extends the service life of the power supply. 5. FINE WORKMANSHIP: With sufficient materials, reasonable circuit design, guaranteed power output, every component strives for excellence, and meticulous craftsmanship is visible. Specification: Item Type: DC Power Supply Variable Material: Aluminum Alloy Product Mode: WPS3010H Output Voltage: 0-30V Output Current: 0-10A Output Power: 300W Continuously Adjustable From Constant Voltage State CV: 0 to rated voltage Continuous Adjustable From Constant Current State CC: 0 to rated current Working Temperature: 0 ℃ to 40 ℃ Relative Humidity: Less than 80% RH Ripple Voltage: VPP less than or equal to 1% Overall Efficiency: Greater than or equal to 89% Digital Display Accuracy: 4 digit digital tube, three sets of display for voltage, current, and power Display Resolution: Voltage: 0.01V Current: 0.001A (greater than 100V, 0.1V; greater than 10, 0.01A) Display Accuracy: ± 0.5%+5words. Package List: 1 x DC Power Supply Variable1 x Connection Line 1 x Plug 1 x Manual