ABSTRAK Final project aims to make a tool that has the ability to increase the voltage used for the power supply of the 30 watt LED Lights as a lond media application. The component used as a switch ON or OFF. Mosfet is controlled by totempole with a 20 KHz frequency produced by IC SG3524. A switched mode power supply using a Flyback Converter which is made produces a constant 31.5 voltage. …