Feature: 1. DC-DC boost converter module, working frequency 600KHZ. 2. Conversion efficiency up to 94% (usually 75-91%). 3. Over temperature shutdown, input under voltage protection and short circuit protection. 4. On-board high quality capacitors stabilize output voltage. 5. Reasonable component layout, easy to wire and use. Specification: Item Type: DC-DC Boost Converter Working Frequency: 600KHZ Maximum Conversion Efficiency: 94%(Normally 75%-91%) Quiescent Current: About 1MA Operating Temperature: -40~+85 Storage Temperature: -65~+150 Size : Approx 45x21x15mm / 1.77x0.83x0.59in Weight : 9g Output 5V: Maximum output: 5V / 3.5A (maximum power 17W, see picture for more details) Output 6V: Maximum output: 6V / 4A (maximum power 24W, see picture for more details) Output 9V: Maximum output: 9V / 5A (maximum power 45W, see picture for more details) Output 12V: Maximum output: 12V / 5A (maximum power 60W, see picture for more details) Output 15V: Maximum output: 15V / 4.5A (maximum power 67W, see picture for more details) Output 19.5V: Maximum output: 19.5V / 3A (maximum power 58W, see picture for more details) Package List: 1 x Boost Converter Note: This is a high power boost module. Please pay attention to the following when using:1. Power supply must be sufficient. If the module needs to output 30W power, the power supply must be greater than 40W.2. Power and boost module leads must be thick enough (can pass 10A) and soldered well.3. Use a multimeter to directly measure the VIN GND port to determine if the power is sufficient. If the voltage is lower than the power supply 1V, the power supply is insufficient or the connection is poor.4. Input voltage can not be greater than the maximum input range5. Output power can not be greater than the maximum load for a long time6. Input power must be greater than the output power because of the power consumption of the module itself