DC 12V 20A 480W to 24V Up Converter Waterproof Step Regulator Car Power Module
Output current: 20A (max), 480W. 1x 12V to 24V DC Converter. 100% Waterproof with Anti-shock protection. Bicycle Fork Stem Extender Handlebar Riser Extension Adapter Mountain Bike UK. More than 90% power conversion efficiency.