Features: 1. Internal circuit board adopts precision SMT workmanship, stable performance and high efficiency. 2. Sealed silicone housing, waterproof, dustproof and anti-shock. 3. Single USB output port, convenient to supply power for electronic devices. 4. With overvoltage, overcurrent, overheat and short circuit protection, and can work normally after restoring to normal condition. 5. Widely used in LED screen, automotive GPS navigation, MP3, MP4, car DVD, audio, electronic dog, etc. Specification: Model: GYVRM-G120503 Type: DC-DC non-isolated step down module Input voltage: 8~22V Output voltage: 5V0.25V Output current: 3A Output power: 15W Conversion efficiency: 96% Dimensions: 28*14*63mm / 1.10*0.55*2.48in Weight: Approx. 42g/1.5oz Package list: 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.1Internal circuit board adopts precision SMT workmanship, stable performance and high efficiency. 2Sealed silicone housing, waterproof, dustproof and anti-shock. 3Single USB output port, convenient to supply power for electronic devices. 4With overvoltage, overcurrent, overheat and short circuit protection, and can work normally after restoring to normal condition. 5Widely used in LED screen, automotive GPS navigation, MP3, MP4, car DVD, audio, electronic dog, etc.