INSMA 4PCS Pro DC-DC Super Converter Step Down Module BUCK Adjustable 3V 5V 16V f. RC Plane 100% brand,high quality and New Product Rectification:Synchronous rectification 4PCS Mini DC-DC step-down adjustable module Input voltage:DC 4.75V-23V,Output voltage:DC 1.0V-17V Output ripple:30mV,Switching frequency:340KHz,Dimension: 17 x 11 x 4mm