1. With isolation function, the power board test conditions input DC12V, the 12V output is about 13-14V without load,2. The 18V output is about 19V when no load is applied, and will decrease a bit after being loaded.3. The power amplifier circuit has a certain voltage adaptability range, it doesn matter how high or low it is, a few volts.4. If installed in a car, the actual working voltage of the car is about 13.5V, and the output will be higher.5. This board does not have a voltage stabilizing open-loop circuit, has small ripple, good transient response, high efficiency and low heat generation, and is suitable for power amplifiers.Description:1.Output power: 200W2. Input voltage: DC10-15V3. Output current: 200W/output voltage = output current. That is, the higher the output voltage, the smaller the current.Specifications: 18V outputColour:As ShownMaterial:PCBSize:75x70x36mmPackage Contents:1x Power Amplifier Module1x 10A FuseOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.