5V 2A Solar Panel USB Charge Voltage Controller Regulator 620V to 5V Step Down Module with LED Indicator Why you need this module Converts a wide input voltage range into a stable 5V USB output so you can power or charge USB devices directly from a solar panel or other 6 to 20V sources. Simplifies offgrid charging and small electronics projects by providing a regulated USB power supply without bulky batteries or extra converters. Built for straightforward installation and reliable everyday use, with a visible LED indicator to show operational status. Key benefits Reliable 5V USB output rated up to 2A for charging phones, cameras, small power banks, GPS units, sensors, microcontrollers and other USBpowered devices. Accepts input voltages from 6V to 20V, making it compatible with common small solar panels and many DC power sources. Stepdown regulator design maintains a stable 5V output even when input voltage varies within the specified range. LED indicator for quick confirmation that the module is receiving power and supplying output. Main features Function: DC to DC stepdown voltage regulator that converts 620V input to a regulated 5V USB output at up to 2A. Output interface: USB output for direct charging and powering of USB devices. Indicator: Builtin LED to show power and operating status. Form factor: Compact module suitable for installation in small enclosures or integration into portable power setups. Construction: Standard electronic components on a printed circuit board designed for lowprofile integration. Compatibility and use Use with small photovoltaic panels whose opencircuit or nominal voltage falls between 6V and 20V. Works with any device or accessory that charges or runs from a 5V USB source and draws up to 2A. Practical applications 1. Solar phone charging station: Connect this module between a 620V solar panel and a USB cable to charge phones and cameras while camping or during outdoor activities. 2. Vehicle and boat power projects: Step down accessory outputs or auxiliary battery feeds to a stable 5V USB source for navigation devices, USB lights, and charging ports. 3. DIY electronics and offgrid sensors: Provide a regulated 5V supply for microcontroller boards, wireless sensors, and portable electronics when using solar panels or other DC sources. What to expect A compact, easytointegrate voltage regulator that converts common lowvoltage DC sources into a usable 5V USB supply. Clear operational feedback via the LED indicator to confirm when the module is active. Installation note Connect the module input to a 620V DC source and use the USB output for your device. Verify device current draw does not exceed the 2A rating. This stepdown module offers a practical and straightforward way to add USB charging capability to solar and DC power setups while keeping installation and wiring simple.