AC 100-240V, 50/60Hz input; DC 3-36V, up to 4A 144W adjustable output adapter with multiple plug options. Provides variable voltage output from 3V to 36V and current up to 4A, suitable for a wide range of electronic devices. LED display shows output voltage to help prevent incorrect voltage settings that may damage equipment. Includes 5.5x2.5mm tip and 14 commonly used DC connectors: 6.5x4.4mm with pin, 5.5x2.1mm, 5.5x3.0mm with pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C, and DC terminal connector. Compatible with various electronic devices such as LED strips, 3D printers, TV boxes, smart speakers, wireless routers, humidifiers, USB fans, IP cameras, USB hubs, hard drive enclosures, DC appliances, pumps, digital photo frames, DVR/NVR systems, and more. 6-foot power cord for convenient use. Adjustable knob allows smooth voltage regulation. Features built-in safety protections including over-voltage, over-current, short-circuit, and over-temperature protection. Quiet operation with no risk of spontaneous combustion, explosion, or fire hazards. Designed for indoor use only. Check device compatibility before use; DC jack size: 5.5x2.5mm (compatible with 5.5x2.1mm). Package includes: 1 x 3-36V 144W adjustable adapter, 14 x DC connectors, 1 x reverse polarity adapter, 1 x output cable with alligator clips, 1 x male DC power extension cable. Always verify correct voltage before connecting to your device. For best performance and longevity, operate below 80% of maximum load. Universal power supply compatible with most DC input devices. Suitable for use with GPS, CCTV cameras, converters, LED lighting, DVD players, Bluetooth speakers, tablets, radios, routers, and other household electronics. Input: AC 100-240V 50/60Hz; Output: DC 3-36V adjustable, up to 4A, 144W max; Connector: 5.5x2.5mm (additional tips included). Reverse polarity adapter: 5.5x2.1mm. Power cable length: 6.56 ft (200 cm). Operating temperature: -20°C to 50°C. Plug type: US standard, suitable for use in Canada, Mexico, Thailand, Taiwan, Philippines, and other countries using US plug compatibility. Color: As shown. Material: Metal. Package contents: 1 x variable power supply. Note: Image color may vary slightly due to lighting and monitor settings. Allowable measurement deviation: +/- 1-3 cm.