Larson Electronics - Encapsulated DC to DC Step Up Transformer - 12V DC to 16V DC - 10 Amps - Flying Leads - Waterproof
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Amazon.com: DC to DC Boost Converter 12V/3.5A DC-DC Step-up Boost Voltage Converter Module 3V 3.3V 3.7V 5V to 12V Adjustable Voltage Regulator : Electronics
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