The difference between 1A and 2A power adapters primarily lies in the amount of current (amperage) they can provide, which affects their ability to charge or power devices.

Low leakage current is a critical requirement in the design of medical power supplies, particularly because of the potential risks associated with electrical shocks to patients and operators. Leakage current refers to the unintended flow of electrical current from a device's conductive parts to the ground or to other conductive parts, which can occur even when the device is operating normally.

Medical power supplies are subject to rigorous requirements to ensure safety, reliability, and compatibility with medical devices. These requirements cover a wide range of factors, including regulatory compliance, electrical performance, environmental considerations, and mechanical design. Here’s an overview of the key requirements for medical power supplies: