Description: Properties: Synchronous step-down power Buck Power Input voltage: Input voltage: 12V ( DC11-16V ) Output voltage: 9V ,Output Current: 2.5A MAX Protection: overcurrent protection, export short circuit protection, reverse polarity protection. Widely used in Car device, such as LED Display, Car Navigation, Car Audio, Car Radio,Hard Disk Player, MP3, DVD, GPS, ect Specification: Volume size: 40mm x20mm x10mm (L x W xH). Package Includes: 1 Piece DC-DC 12V to 9V 2.5A Step-down power supply module