[Power Specs]: Input 100V-240V 50/60Hz; Output: 12V 3A. Output adaptor Self-Adapting Barrel jack size: 5.5mm x 2.1mm (applicable 2.5mm) positive (+) center. [Intelligent Identification Output]: Fit for 12V 0.1A~3A 100mA~3000mA (E.g; 0.1a 100ma 0.3a 300ma 0.4a 400ma 0.5a 500ma 0.6a 600ma 0.7a 700ma 0.8a 800ma 0.9a 900ma 1a 1000ma 1.5a 1500ma 2a 2000ma 2.5a 2500ma 3a 3000ma) electrionic equipment. [Safety smart]: Built-in emergency protection mechanism with short circuit, over current, over voltage, over temperature protection. [Extensive Compatibility]: Suitable for CCTV Cameras, LED Strip light, led tape light, Yamaha keyboard, BT speakers, GPS, webcam, router, and more 12V electronics. [Lifetime friendly customer service]: If the product is not satisfied, you will get a replacement or a 100% refund.