Features Internal circuit board adopts precision SMT workmanship, stable performance and high efficiency. Sealed silicone housing, waterproof, dustproof and anti-shock. Single USB output port, convenient to supply power for electronic devices. With overvoltage, overcurrent, overheat and short circuit protection, and can work normally after restoring to normal condition. Widely used in LED screen, automotive GPS navigation, MP3, MP4, car DVD, audio, electronic dog, etc. Specification:Model: GYVRM-G120503Type: DC-DC non-isolated step down moduleInput voltage: 8~22VOutput voltage: 5V±0.25VOutput current: 3AOutput power: 15WConversion efficiency: 96%Dimensions: 28*14*63mm / 1.10*0.55*2.48inWeight: Approx. 42g/1.5oz Packagelist:1 * USB Step Down Converter Note:1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item.2. Please allow slight error due to manual measurement. Thanks for your understanding. Package List