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Step-up DC Converter 12V 24V to 48V 8A Voltage Regulator, DC-DC Power Supply Boost Module RC124808 CE RoHS RCNUN - AliExpress
Amazon.com: XWST DC DC Converter Reducer 20-90v 24v 36v 48v 60v 72v to 12v DC Converter Step Down Buck 1A 12v dc Voltage Regulator for Golf Cart Car Device (XW-2090-12-1A) : Electronics
12V To 24V DC-DC Converter Circuit
DC-DC Converter 12v-36v 50A - Revolution Power Solutions
DC/DC Power Converter 12V DC Input to 5V DC Output at 1 Amp Wire to USB - NCD Store
DC-DC Step-Up converter module 5V/8V/9V/12V - Kamami on-line store
Model 6948 | SEC America
12 volt to 12 volt DC/DC regulators or converters fully isolated, waterproof IP66, marine, industrial and military grade voltage regulators (fully regulated) 60 Watts.
12V to 28V 100A 2800W DC DC Step Up Converter Voltage Regulator – Daygreen