Specification: Voltage: 5v Capacity: 180ma Size: 99 x 68 x 1.5mm/3.9" x 2.68" x 0.06" Materials: high-strength anti-deformation PCB board, with polycrystalline silicon solar cells as the power source Scope of application: Solar energy productsFeatures: 1. High conversion rate, high efficiency output. 2. Excellent weak light effect. 3. Unique technology, beautiful and sturdy. 4. The polycrystalline silicon solar cells in series, with tempered glass, EVA and TPT heat sealed from around the installation of aluminum alloy frame, with wind, anti hail ability, ease of installation and other features. Widely used in solar lighting, light, outdoor power supply and other fields.