Check the listing for details. 5PCS DC to USB Boost Converter Module 0.9V-5V Input to 5V 600mA USB Output. Condition: New. Listed at 6.99 USD. Product Description: Enhance your electronics projects with our versatile DC to USB Boost Converter Module. This pack of five modules is designed to effortlessly convert a range of DC power sources from 0.9V up to 5V into a stable 5V USB output. Whether you're looking to utilize 3.7V lithium cells across their entire voltage range or tap into the potential of alkaline and NiMH cells, these modules ensure a consistent 5V 600mA output, ideal for charging USB devices. Key Features: Versatile DC Input Range: Accepts any DC input between 0.9V and 5V, making it perfect for a wide array of power sources. Stable USB Output: Provides a reliable 5V output with up to 600mA current, suitable for charging smartphones, tablets, and other USB devices. Broad Compatibility: Great for adding a USB charging port to various electronic devices, enhancing convenience and utility. Efficiency & Reliability: Features an efficient PFM control IC to ensure stable performance and an LED power indicator for operational status at a glance. Compact Design: With dimensions of 34mm x 16mm, these modules are small enough to fit in a variety of projects without adding bulk. Product Guarantee: Your satisfaction is our priority. That's why we offer a hassle-free 30-day return policy and a comprehensive one-year warranty on our boost converter modules. Shop with confidence and bring your DIY power bank and charging projects to life with ease!