400-watt Rutan pump is a 24V DC submersible solar-powered pump with a maximum head of 50 meters and a flow rate of approximately 1,500 liters per hour. It features a corrosion-resistant stainless steel body, a 1-inch outlet, and is designed for direct connection to solar panels without a battery or controller. Key features include a watertight connector, dry-run capability, and the ability to be easily repaired in the field.