Feature: 1. Versatile Compatibility: The DC power cable is equipped with a 5.5mm x 2.5mm DC plug. Outer diameter 5.5mm, inner diameter 2.5mm. The external is negative - and the internal is positive +. 2. Generous Length: With a generous 93cm (37in) power cable, this adapter provides ample length to connect your devices comfortably. Ensure you check the length to meet your needs before purchasing. 3. Robust Safety Features: Equipped with five safetys, including over temperature, short circuit, under voltage, over voltage, and over current, this adapter prioritizes your devices' safety and durability in any environment. 4. Efficient Power Output: Delivering DC output of 15V at 3A, this adapter ensures effective power delivery. We recommend using it at 80% of its full load for excellent performance. 5. Wide Application: This power adapter is suitable for LED billboards, LED display, light characters, light strip, lamp module, security, monitoring, scientific research equipment, LED lighting, industrial control equipment, communicating equipment, power equipment, instrumentation. Specification: Item Type: DC Power Adapter Material: ABS Output DC Interface: 5.5mm x 2.5mm with spring clip, also compatible with 5.5 x 2.1mm Application: LED billboards, LED display screens, luminous characters, light strips, light strip modules, security, scientific research equipment, LED lighting, industrial control equipment, power equipment, instruments and meters, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, LCD monitors, LED lamps, audio visual products, security, computer cases, small TVs, 2.5inch mobile hard drives, mobile DVDs, TV boxes, wireless audio and video equipment, charging equipment, MP3 MP4, small table lamps, routers, switches, game consoles, telephones, colored lights, cameras, monitoring equipment, digital controllers and other home and portable devices. DC Output: 15V 3A 45W Length: Approx. 93cm / 37in. Package List: 1 x Adapter