12V Dual output DC-DC Voltage Converter Step Up 3V~5V to 12V Mini Boost Module | eBay
20A In-Vehicle DC Battery Charger - REDARC
Dc-dc 12v To 5v 3a 15w Car Power Converter Micro Mini Usb Step Down Voltage Power Supply Output Adapter Low Heat Auto Protection - Cables, Adapters & Sockets - AliExpress
22 AWG 12V DC Power Cable Male to Male Plug 2.1 x 5.5mm 2 ft.
DC/DC Converter Passive PoE Injector
Amazon.com: DROK Boost Buck Converter 9V-36V to 12V 3A 36W Aluminium Shell Waterproof Auto Step Up Down Voltage Regulator 12V Volt Transformer for Car Audio Solar Power System LCD Television LED Display
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.