Facmogu AC to DC Adjustable Power Supply, 100-240V AC to 3-12V DC 24W Power Adapter Speed Controller, Variable DC 3V 5V 9V 12V Universal AC/DC Adapter, Multi-Voltage Fan Power Supply Regulated Adaptor

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【Multi-Voltage Power Supply】-- Input Voltage AC 100V-240V 50/60Hz, Output Voltage ranging from DC 3V ~ 12V, up to 2A (2000mA), 24W Max. Perfectly meet a variety of indoor electronics. Please choose correct voltage before plug it to your device. Wrong voltage may damage your device. The power supply requires adequate palce for heat dissipation, Place on hard, flat surface with clearance. Keep away from soft surfaces (beds, carpets), fabrics, and rubber to prevent overheating. 【Voltage Adjustable】-- Easy to use with the switch knob. The controller is not only suitable for speed regulation but also for dimming and temperature regulation. The multi-speed controller allows you to set the fan's speed to the optimal level of noise and airflow 【Plug Design】-- Fit for both 5.5x2.5mm & 5.5x2.1mm plug. This cable terminates with a "standard" 5.5mm OD, 2.5mm ID DC plug, but it's also compatible with DC 5.5x2.1mm socket with the inner center spring contact. (NOTE: Power Supply Polarity: Center or Tip is positive (+), Sleeve is negative(-) 【Built-in Power Supply Protection】-- It is designed with blue signal light ,and it will flash when overloaded. With over voltage, over current, and over temperature protection to keep all of your mobile devices safe from unexpected surges and spikes. Wide voltage range from 100V to 240V makes it suitable for travel 【Wide Applications】-- The 24W (Max) all-in-one multipurpose AC/DC adapter fit for many 3~12V small household electronics such as motor speed controller, LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, Wifi camera, USB Hub, hard disk box, DC motor, digital photo frame, DVR NVR surveillance system etc