[Fast and Efficient Charging] The solar charging board can quickly 1 x 1.2v aa rechargeable battery, providing a convenient power solution on demand. [ Frame for Safety] The rechargeable battery is shielded by a sturdy frame, ensuring a safe and secure charging experience. [Energy-saving Performance] Operating at dc2v with a working current of 0‑500ma and a rated power of 1w, this charger offers optimal energy efficiency for long-lasting power supply. [Energy Efficient and Eco-friendly] This polycrystalline silicon wafer solar panel charger preserves energy and protects the environment, a sustainable choice for powering devices. [Portable and Convenient] With its compact size, this solar panel charger is easy to carry, making it ideal for outdoor use and on-the-go charging needs.