AC 100-240V, 50/60Hz; Output: DC 3-36V, up to 4A 144W adjustable adapter with 3-position switch on plug. Provides adjustable voltage output from 3V to 36V, including common voltages such as 3V, 4V, 4.5V, 5V, 6V, 9V, 12V, 16V, 19V, 21V, 24V, 26V, 28V, 30V, 32V, and 36V, with current support up to 4A (e.g., 300mA, 500mA, 1A, 1.5A, 2A, 2.5A, 3A, 4A). LED display shows output voltage to help prevent incorrect voltage settings that could damage devices.Equipped with a 5.5x2.5mm center-positive DC plug and includes 14 commonly used interchangeable tips: 6.5x4.4mm + pin, 5.5x2.1mm, 5.5x3.0mm + 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 a wide range of electronic devices. Easy to connect wires for DIY projects. 6-foot power cord for flexible use.Smooth voltage adjustment knob allows precise control. Features an integrated power switch for turning off without unplugging. Includes converter cables and test leads to expand compatibility with various equipment. Built-in safety protections: over-voltage protection, over-current protection, short-circuit protection. Operates quietly with no risk of overheating, combustion, or explosion. Safe and reliable for indoor use.This 144W multifunctional AC/DC adapter works with a variety of 3-36V 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, water pumps, digital photo frames, DVR/NVR systems, and more. (Check device DC jack size before purchase: 5.5x2.5mm fits most; compatible with 5.5x2.1mm.)Package includes: 1 x 3-36V 144W adjustable power adapter, 14 x DC connectors, 1 x reverse polarity adapter (5.5x2.1mm), 1 x output cable with alligator clips, 1 x male DC power extension cable. Always verify correct voltage before connecting to your device. Incorrect voltage may cause damage. Recommended for use under 80% of maximum load.Universal power supply compatible with a wide range of DC-powered electronics. Suitable for use with GPS devices, CCTV cameras, converters, LED lighting, DVD players, DVRs, Bluetooth speakers, tablets, routers, radios, and various household electronics.Specifications: Input: AC 100-240V, 50/60Hz Output Voltage: DC 3-36V (adjustable) Output Current: Up to 4A Maximum Power: 144W DC Plug Size: 5.5mm x 2.5mm (center positive) Included Tip Sizes: 6.5x4.4mm + pin, 5.5x2.1mm, 5.5x3.0mm + 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, DC terminal connector Reverse Polarity Adapter: 5.5mm x 2.1mm Power Cord Length: 6.56 ft (200 cm) Operating Temperature: -20C to 50C Plug Type: US standard (suitable for use in Canada, Mexico, Thailand, Taiwan, Philippines, and other countries with compatible outlets) Color: As shown Material: Metal housing Package Contents: 1 x Adjustable Power Supply 14 x DC Connectors 1 x Reverse Polarity Adapter 1 x Output Cable with Alligator Clips 1 x Male DC Power Extension Cable Note: The package includes only the items listed. Image colors may vary slightly due to lighting and screen settings. Measured dimensions may vary by 1-3 cm.