0029774ワット発電中さん
2018/09/25(火) 22:52:10.26ID:Q0uCfv9R10V-50V to 5-35V DC Buck Module Step Down Converter synchronous rectification
https://ebay.us/HDorHg
200W 15A DC-DC 8-60V TO 1-36V Synchronous Buck Converter Step Down Module US
https://ebay.us/FPSWfM