5V 4A Power Supply: Input: AC 100~240V, 50/60Hz; Output: DC 5V 4A 20W(Max). Polarity: Center Positive (+). Ouput current is 4A max it means that it can supply with all amperage which smaller than 4000mA, such as 5V 4A 3.5A 3A 2.5A 2A 1.5A 1A 0.8A 0.5A 1000mA 900mA 800mA 700mA 600mA 500mA 400mA 300mA 200mA 100mA etc. 5V 4A power adapter would meet your 90% power need for 5V household and office electronics, like Graco Baby Swing, Jetson Nano, Atomic Pi, Odroid XU4, portable bluetooth, wireless receivers, electrical toys, WS2812B WS2811 LED strip lights, games consoles, kids 4 wheeler, GPS, DVR, webcam, speaker, CCTV camera, lan phones, external speaker, video baby monitor, mini fan, Router Kindle Fire Table, hard disk boxand more 5V devices. 4.9FT universal ac adapters are equipped with 8x DC Plugs: 5.5x2.1mm (compatible with5.5x2.5mm), 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C, terminal connector, which expands the application range of the adapter to a greater extent. Please reconfirm the DC jack size before purchase and use to ensure compatibility. Much more sturdy design than the others, this adapter was the perfect replacement for your lost dc 5V power cord. 5V adapter manufactured with the highest quality materials and include multiple safe guarding against over voltage, short circuit,internal overheating. Package includes : 1 x 5V 4A ac/dc adapter, 8 x DC Tips. Built-in multiple safety protection systems and safe to use. If you have any questions about the product, please do not hesitate to consult us before returning. We always support and provide excellent after-sales support!
Please Note:
1. Indoor use only. (Not waterproof)
2. DC connector polarity: inside Positive(+), outside Negative(-).

Product Parameter
Item: Power Adapter 5V 4A 20W
Input: AC100V/240V 50/60Hz
Output Voltage: DC 5V
Output Current: 4A Max
Output Wattage: 20W Max
Power Cord Length:4.9FT/1.5M Working temperature: -20~50℃
Storage temperature: -20 ~85℃

Exactly What You Are Looking for
1 x 20W Universal Power Supply
8x DC Tips