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

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 deviceVoltage 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 airflowPlug Design-- Fit for both 5.5 x 2.5 mm & 5.5 x 2.1 mm plug.

This cable terminates with a standard 5.5 mm OD 2.5 mm ID DC plug but it's also compatible with DC 5.5 x 2.1 mm 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 travelWide 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