The MDR-20-24 is a type of Mean Well power supply. It is a high-efficiency, 20W, low-cost, 12V to 24V DC-DC converter. It features an extra-wide input voltage range, allowing for an input of 4.5V to 28V, enabling it to run off a variety of sources including single cell Li-ion batteries. The MDR-20-24 is able to provide a reliable, cost-effective solution for applications that require a power supply of 20W or less. The MDR-20-24 also features over-voltage, over-current and short-circuit protection, giving it excellent reliability and protection in any scenario.