It can change the DC18V into 12V output. And it can be widely used in all kinds of electrical apparatus, which voltage rating are DC12V.
It can be made from an advanced CMOS chip, and can work in the state of ultrasonic, which can both in a great extent diminish the bulk and weight and make the circuit work without noise. So it is small, light, quiet and convenient. It can protect the electric circuit in a great degree.
