Features: Experience rapid charging with the QC3.0 Step Down Module, to support multiple fast charging protocols, ensuring your devices power efficiently. This module features a robust design with intelligent chip technology that automatically adjusts output for device compatibilities, safeguarding battery while providing stable power delivery. Ideal for frequent traveler and enthusiasts, this is perfect for those who need reliable power, whether you're commuting or exploring great outdoors. Perfect for adventure, office use, or emergency situations, this module allows you to charging your devices via car power or power sources, ensuring you not miss a important moment due to low battery. The QC3.0 Module is a must accessory for anyone seek a efficient charging experience. Specifications: Material: PCB Input: 10-30V Output: 3-12V Size: About. 39x19mm/1.53x0.74in Package Includes: 10pcs Mobile Phone Charging Board note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.