Features: Capable of boosting input voltages from 9V-28V to a stable 30V output, this adapter ensuring that your device receives the necessary power without concerns of voltages drops or surges. Constructed with enduring aluminum housing, IP68 waterproof, this power adapter is builted to withstand challenging environments. The waterproof adapter allows for easy and secure connection to your power sources, making it great for outdoor use where exposure to moisture may occur. Equipped with multiple smart protections including overcharge, overcurrent, overheating, and short circuit safeguards, this converter prioritizes safety. Suitable for various occasions, such as outdoor camping, car emergencies, home medically equipment power supply, supporting multi-mode switching to ensuring stable power conversion performances. Specifications: Component: Aluminum shell Size: about 6.5x2.3x5.9cm/2.56x0.91x2.32inch Line Length: 1m/3.28ft, 3.0m/9.84ft, 5m/16.4ft(Optional) Input voltages ranges: 9-28V Output current: 3.5A Output voltages: 30V Package Includes: 1Pc Power Converter note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.