{"product_id":"12v-3a-power-supply-sw-123v","title":"12V 3A AC-DC Power Supply - 2.1mm x 5.5mm Center Positive | SW-123V","description":"\u003ch3\u003eRegulated 12V 3A AC-DC Switching Power Supply | Part SW-123V\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSW-123V\u003c\/strong\u003e is a compact, regulated switching power supply that converts standard 100–240V AC wall power to a stable \u003cstrong\u003e12V DC @ 3000mA (3A)\u003c\/strong\u003e output. With universal input voltage compatibility and a standard 2.1mm x 5.5mm center-positive barrel connector, it's a reliable replacement or upgrade power supply for a wide range of commercial and consumer devices.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SW-123V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 100–240V AC, 50\/60Hz (universal — works worldwide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Current:\u003c\/strong\u003e 3000mA (3A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 36W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e 2.1mm (ID) x 5.5mm (OD) barrel plug — center positive (+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegulation Type:\u003c\/strong\u003e Switching (regulated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm Factor:\u003c\/strong\u003e Wall-mount\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Devices \u0026amp; Common Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12V LED light strips and LED drivers (up to 36W)\u003c\/li\u003e\n\u003cli\u003eCCTV cameras and IP security cameras requiring 12V DC\u003c\/li\u003e\n\u003cli\u003eRouters, modems, and networking equipment\u003c\/li\u003e\n\u003cli\u003eNAS drives and small network-attached storage devices\u003c\/li\u003e\n\u003cli\u003eIndustrial sensors, actuators, and control systems\u003c\/li\u003e\n\u003cli\u003eHobby electronics, Arduino\/Raspberry Pi projects requiring 12V\u003c\/li\u003e\n\u003cli\u003eSmall motors, solenoids, and automation components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy a Switching Power Supply?\u003c\/h3\u003e\n\u003cp\u003eSwitching power supplies are more efficient than linear supplies, generating less heat and maintaining stable output voltage even as load varies. The SW-123V's regulated output ensures your connected device receives a consistent 12V regardless of input voltage fluctuations — critical for sensitive electronics and monitoring equipment.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What devices is this compatible with?\u003c\/strong\u003e\u003cbr\u003eA: Any device requiring 12V DC at 3A (36W) or less with a 2.1mm x 5.5mm center-positive barrel connector — including LED strips, CCTV cameras, routers, and more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this work outside the US?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The 100–240V AC universal input supports use in North America, Europe, Asia, and most other regions (plug adapter may be required).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the output center positive or center negative?\u003c\/strong\u003e\u003cbr\u003eA: Center positive (+). The inner pin of the 2.1mm x 5.5mm barrel connector is positive.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use this for a 12V LED strip?\u003c\/strong\u003e\u003cbr\u003eA: Yes, provided your LED strip draws 3A (36W) or less. For higher-wattage installations, you'll need a higher-amperage 12V supply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this regulated?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This is a regulated switching power supply, meaning the output voltage stays stable at 12V across varying load conditions.\u003c\/p\u003e","brand":"PHC Enterprise, Inc.","offers":[{"title":"Default Title","offer_id":45060617862,"sku":"SW-123V","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2082\/0601\/products\/SW-123V.JPG?v=1740070157","url":"https:\/\/www.acdcpowershack.com\/products\/12v-3a-power-supply-sw-123v","provider":"AC-DC PowerShack","version":"1.0","type":"link"}