YOOFONE 5V Power Supply 5A 25W AC/DC Adapter LED Driver 100-240V AC to DC 5 Volt 5amp 4.5A 4A 3.5A 3A Converter Transformer 5.5x2.5mm Tip for WS2811 WS2812 LED Strip Light Security System

Parameter Input: AC 100V~240V 50/60Hz Output Voltage: DC 5V ( constant voltage ) Output Current: Max 5A Output Wattage: Max 25W Output DC connector:5.5mm x 2.5mm (compatible with 5.5 x 2.1mm) (inside"+", outside"-") Adapter body size: 4.6in(L) x 1.9in(W) x 1.2in (H) Power cable length: 36.4in / 92.7cm Safety Compliance: FCC CE RoHS Is this DC 5V 5A power supply compatible with your device? 1) Check the voltage. It only fits 5V appliances 2) Check the current. The current your device needs must be equal to or less than 5A,such as 4.5A, 4A, 3.5A, 3A, 2.5A, 2A, 1.5A, 1A, 850mA, 650mA and so on. 3) Check the power input port of your device. Its outer diameter should be 5.5mm; inner core diameter should be 2.1-2.5mm. 4) Check the polarity. The inner polarity should be"+", exterior polarity should be" - " Package included 1x V 5A power supply adapter 1x AC Power Cord 1x DC female connector