12V to 220V inverter power supply, stable output voltage frequency of 100WDC-DC voltage regulator with a wide range of applications, seamless automatic switching between boosting and reducing voltage

High efficiency automatic voltage regulator with voltage display, input support up to 4.5V-30V, output adjustable from 0.5V-33V, advanced aluminum casingThe highest efficiency is up to 91%, with overheating protection and display prompts.Widely used for seamless automatic switching between voltage boosting and voltage reducing. The input voltage can be higher or lower than the output voltage, meaning that the input voltage changes while the output voltage remains unchanged. If used in cars, the voltage can be stabilized to 12V