1、Polycrystalline Silicon: Made of high efficiency polycrystalline silicon cells, high conversion rate and high output efficiency. Perfect prop for DIY design, perfect for science projects, provide enough power for DIY. 2、Working Parameters: Maximum power is 2W, working voltage is 12V. Output power error is ±5%, high accuracy. Working temperature is ‑10℃‑+85℃. Test conditions and light strength is 1000W/M2, 25℃. 3、Applications: Suitable for solar lawn lights, solar wall lights, solar handicrafts, solar toys, solar radios, solar flashlights, solar cell phone chargers, solar small water pumps, solar home office power supplies and portable mobile power systems, etc. 4、Lightweight and Portable: This DIY solar panel module has a lightweight, and it is portable and easy to operate. High stability and durability, long service life. 5、Environmental Friendly: Mini DIY solar system is energy saving. Contribute to environmental protection by using green energy solar energy. Absorbs sunlight and converts it directly or indirectly into electricity. 1 x Solar Panel Item Type: DIY Solar PanelMaterial: PolysiliconGross Weight: 135g / 4.8ozProduct Size: 20x13cm / 7.9x 5.1inMaximum Power: 4.2WWorking Voltage: 12VProduct Use: It is used for solar lawn lights, solar wall lights, solar handicrafts, solar toys, solar radios, solar flashlights, solar mobile phone chargers, solar small water pumps, solar home/office power supplies and portable mobile power systems, etc.Working ConditionsWorking Temperature: -10℃-+85℃Test Conditions Light Strength: 1000W/M2, 25℃, AM 1.5Output Power Error: ±5%