Key benefits Durable housing with an extendedlife cooling fan enables accurate measurements during prolonged industrial operations, reducing overheating risk and downtime. Wide voltage and current range supports realistic power testing of various devices and packs (DC 3.713 V, 0.153 A). Versatile tool for testing power supplies, battery packs, and USB powered devices, helping to validate performance and reliability. What it does Adjustable constant current electronic load that precisely regulates voltage and current for power testing. Provides stable, controllable load conditions to simulate realworld operating scenarios for USB powered and other DC devices. Standout features USB load tester designed with a robust housing and extendedlife cooling fan for reliable operation in demanding environments. Who it is for Electronics engineers, enthusiasts, and lab technicians testing power supplies, battery packs, or USB powered devices. Use scenarios In a workshop, optimize charging systems by applying controllable loads to chargers to verify stability and efficiency. In a laboratory, verify circuit stability and performance of power supplies or battery packs under defined load conditions. At home, troubleshoot portable electronics by simulating underload behavior for USB powered devices or power banks. Specifications at a glance Type: Adjustable constant current electronic load Voltage range: DC 3.713 V Current range: 0.153 A Cooling: extendedlife cooling fan Housing: integrated for durability