Brand: Parts Express. MPN: 129-1204. This adapter buyout replaces many 12 VDC adapters for around half the cost of other 3 000mA power supplies. Its tip positive 2.1 x 5.5 mm plug is the most common size for portable amplified speakers cable boxes and LED light strips. Versatile 6 ft. DC output cord 5 ft. polarized input AC cord Level VI compliant for energy efficiency 12 VDC 3A for small amp boards and LED light strips UL approved for safety 12V DC 3A AC Adapter Power Supply with 2.1 x 5.5mm Center Positive Tip with Polarized AC Cord 12 VDV 3A power adapters are in high demand for audio amp boards musical keyboards portable powered speakers and LED light strips. Its popular 2.1 x 5.5 mm tip positive plug fits most 12 VDC electronic devices without having to change or adapt the plug. The 12 VDV 3A output current fills the power needs for many 50 watt audio projects. This is a factory buyout so quantities are limited. Specifications: Input voltage: 100-120 VAC Input current: 1.2A Output Voltage: 12 VDC Current output: 3A Power range: 36 watts Output cord: 6 ft. with 2.1 x 5.5 x 10mm center positive plug Input cord: Polarized 5 ft. Dimensions: 5-1/4 L x 2-1/4 W x 1-5/16 H.