5V 2A Power Supply: Input: AC 100~240V, 50/60Hz; Output: DC 5V 2A 10W(Max). Polarity: Center Positive (+). Ouput current is 2A max it means that it can supply with all amperage which smaller than 2000mA, such as 5v 2A 1.5A 1A 0.8A 0.5A 2000mA 1800mA 1600mA 1000mA 800mA 600mA 500mA 400mA 300mA 100mA etc. DC connector is 5.5mmx2.5mm, compatible with 5.5mmx2.1mm. Comes with a female DC barrel connector. You can easily screw wires on it without soldering. Please reconfirm the DC jack size before purchase and use to ensure compatibility. 5V 2A power adapter would meet your 90% power need for 5V household and office electronics, like portable bluetooth, wireless receivers, electrical toys, WS2812B WS2811 LED strip lights, games consoles, kids 4 wheeler, GPS, DVR, webcam, speaker, CCTV camera, lan phones, USB Hubs, laptop cooler, external speaker, video baby monitor, mini fan, Router Kindle Fire Table, hard disk box and more 5V devices. Much more sturdy design than the others, th