Features: This 12V boosting converter efficiently steps up 9v-28v input to stable 30V/3.5A output, specifically designed to power in mobiles environments with its aluminum alloy housing and IP68 waterproof rating. Featuring silicone sealing and corrosions resistant tin coated copper wiring, this voltages step up module maintains consistent performances across extreme temperatures while ensuring tool less installation within minutes. Essential for motorhome owners, marine enthusiasts requiring reliabled power conversion for sensitive electronics. Optimized for mobile power solution in trucks, boats, and campsites, it safeguards 30V devices against voltages fluctuations during engine starts or solar charging. The compact design integrates quadruple protective circuits (overload/short circuit/overheat/overcurrent) with aviation grade connectors, delivering vibrations resistant performances for critical power needs in harsh outdoor conditions. Specifications: Component: Aluminum alloy shell with tin-clad copper wire. Size: Approx.63.4x21x57.5mm/2.5x0.8x2.3inch Cable Length:Approx.98cm/38.58inch voltages ranging: Input voltages: 9V-28V Output voltages: 30V Conversion type: 1 meter long line ( line), boosting Waterproof levels: IP67 waterproof Package Includes: 1pcs Automotive voltages boosters note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.