PACKAGE INCLUDES 1 x 12V 3A 36W power supply with 40" DC Output Cable, DC Pin size 2.5mm x 5.5mm (with inner circlip, compatible with 5.5x2.5mm);Polarity: Inside Positive and Outside Negative- Application (Should be 12 V not exceed 36 W) : LED Strip Lights / Cable Modem / Router / Electronic Piano Keyboard / DVR NVR Surveillance System / Security CCTV Camera / Infrared IR Array Illuminator / Portable Radio / Computer PC Case Fan / Motor / Arduino PCB Design / Computer Speakers / Digital Photo Frame / External Hard Drive / Foot Back Neck Shoulder Massager / Fresh Water Bilge Air Pump / And Other 12 Vdc Devices- HIGH QUALITY Over current protection, over voltage protection and overload protection, short-circuit protection, Low Power Consumption.- Input : 85-280v 50/60Hz, Output : 12V 3Amp AC to DC Adapter Ideal User For DVR, Router, Cameras & For All who Products also work on 12V 3 Amp, Power On LED Indication.- No Heating Effect (Environment Friendly), , No Vibration / Humming on full load, Stabilized Output Low Ripple & Low Interference. High Efficiency & Low Power Consumption- Standard Size Heavy & Durable Cabinet (As you can see in the image), Comes with Integrated Advanced IC Which Provides Multiple Protections- Purely designed & manufactured in India, which assures the genuine quality. Comes with 1 Year Replacement Warranty (T&C Apply)