This color LCD 250W buck converter is introduced. All features are explained, and the module is opened, and all components are viewed. The input and output voltage is tested at 50V, 40V, 36V, 24V, 12V, 5V, 3.3V, and 1.5V at a 5V output. A thermal image of the hottest spot is shown. Under-voltage and over-current protection tests are shown. Charging a battery is shown, and the ripple of the output voltage is measured and shown. Click on the images below: