The internal circuit board adopts precision process, with stable performance and high efficiency.Sealed silicone case, waterproof, dustproof and shockproof.Single USB output port, convenient for powering electronic devices.With overvoltage, overcurrent, overheating, short circuit protection, it can work normally after returning to normal.Widely used in LED screen, car GPS navigation, MP3, MP4, car DVD, audio, electronic dog, etc.Type: DC-DC non-isolated step-down moduleInput voltage: 8~22VOutput voltage: 5V +/- 0.25VOutput current: 3AOutput : 15WConversion efficiency: 96%Boost Converter Regulator DC-DC 12V to 24V 10A 240WDC Boost Converter 12V to 24V DC-DC 3A 72WAC 12V 24V to DC 5V Buck Regulator 1AAC 12V 24V to DC 5V Buck Regulator 5ADC to DC Buck Converter 36V-72V to 12V 10A 120WColour: BlackMaterial: ABSSize: 30cmPackage Contents:2 x Buck ConverterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.