: Pulse width modulation DC motor speed controller with switching function 2 The input voltage range is DC 22V12V available and the applicable current is within 2A 3 Equipped with a selfrecovery fuse it automatically switches off when the power is too large and the fuse recovers automatically after cooling<br> Specifications: Input supply voltage: 18V12VDC The maximum output power: 30 W The maximum continuous output current: 2A Adjustable working cycle: 0% 100% Size: approx 32 x 32 x 14 mm<br> Box contents: 4 x PWM DC motor adjustable speed controller 4 x buttons<br> Note: Do not connect directly to the AC otherwise the device will burn out<br>Note: <br>1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. <br>2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!<br>About Shipping: <br>1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly.<br>2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.<br>3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 792 hours, wish you a happy shopping!