The 2220 and 2230 series multi-channel programmable DC power supplies are ideal for testing various devices, circuit boards, modules, and products that require multiple power sources, offering cost-effective solutions. The 2200 series power supplies provide two channels, each capable of outputting up to 30V voltage and up to 1.5A current. The 2230 series power supplies include two 30V/1.5A channels, plus an additional 6V channel that can output up to 5A current for powering digital circuits. The 2231A-30-3 model's two channels can deliver up to 30V at 3A current, while the third channel can provide up to 5V at 3A current.