Discover the versatility and reliability of our 12V 3A Power Supply Adapter, designed to meet a wide range of power needs with precision and safety. High Compatibility: This power adapter features a 5.5x2.5mm DC plug, with an outer diameter of 5.5mm and an inner diameter of 2.5mm. The outer is negative, and the inner is positive, making it compatible with a variety of devices including LED advertising boards, LED displays, light strips, security systems, surveillance equipment, scientific research equipment, industrial control devices, and power equipment. Safety: Prioritizing your safety, this adapter is equipped with multiple protective features. It includes over temperature, short circuit, undervoltage, overvoltage, and overcurrent prevention, ensuring a secure and reliable power supply for your devices. Cord Length: With a generous cable length of 93cm/37in, this power adapter offers flexibility in device placement. Ensure the length meets your requirements before purchase to facilitate easy and convenient connections without the hassle of limited reach. Efficient Input and Output Performance: Designed for optimal performance, this adapter accepts an AC input of 50-60Hz and delivers a stable DC output of 12V and 3A 36W. For best results and to extend the lifespan of the adapter, we recommend operating it below its full load capacity of 80% to prevent potential overload situations. Applications: This power adapter is perfect for a wide array of applications. It is suitable for semiconductor refrigeration and heating, air purifiers, electronic refrigerators, LED fixtures, audiovisual products, computer cases, 2.5-inch portable hard drives, portable DVD players, TV boxes, charging devices, MP3/MP4 players, small table lamps, routers, switches, gaming consoles, telephones, decorative lights, cameras, controllers, and more. Equip your devices with a power supply that combines compatibility, safety, and efficiency, ensuring your equipment runs smoothly and reliably. With its EU plug, this adapter is ready to integrate seamlessly into your setup.