DC DC Automatic Boost Module/Inverter 0.5-30V 3A 35W/4A CC Power CV Adjustable Converter Power Supply Regulated VoltmeterFeatures:Adjustable:The device has 4A NC lifting and adjustable power supply module. You can switch between Chinese and English, and it can be turned on or off by default. Easy to operate: The device has clear instructions, and simple operation is enough to start working. Excellent Protection: There is an input anti-reverse connection to prevent burn-in; Anti-back-flow output, no need to add anti-back-flow LED when charging the battery. Time switch: After setting the time, when the time comes, change the current power switch. High performance:With all of the above features, the device will have higher performance than you expect. Specifications:Type: DC Converter Module: As Shown in the Picture Quantity: 1pc Material: Plastic + Metal Input Voltage: 7v-32v Output Voltage: 0.5v-32v Output Current: 3A/4A Normal Cooling Output Temperature: 35W/50W Natural Cooling Voltage Resolution: 0.01v Current Resolution: 0.001A Package Size: About 7.8*5*3.7cm Weight: About 80g/100g Package List:1 * DC Converter