The moisture meter can quickly measure the moisture content of the grain. 1. High conversion rate: This solar panel is made of polycrystalline silicon cells, with high conversion rate and high output efficiency. 2. Energy saving: solar charger panel uses green solar energy, safe, environmental protection, energy saving, high usefulness. 3. Lightweight and portable: lightweight outdoor solar panel, easy to carry. High stability, durability and durability. With DC interface, it can charge 3,7V battery. 4. Weather-resistant: The portable solar panel is designed for outdoor use and can adapt to a variety of complex and harsh weather conditions. 5. Multiple applications: The solar cell panel is suitable for various small power supply devices, such as emergency lights, advertising lights, traffic lights, etc. Specification: Item Type: Solar Panel Material: polycrystalline silicon Power: 5W Operating Voltage: 12 V Product Application: Suitable for various small power supply devices, emergency lights, advertising lights, traffic lights, home lighting, electric fans, such as solar water pumps, solar street lighting, small solar energy systems, etc. List of packages: 1 x Solar Panel 1 x Carabiner