4.2W 18V polycrystalline solar panels are very popular products!High power, convenient size, solar panels are the perfect outdoor emergency equipment.Use it as your generator when you're camping or traveling with your family at the beach.Excellent materials and workmanship make it very durable.Even in low light condition, the output effect of this solar panel is still very excellent. Feature: 1. ?STABLE AND EFFICIENT?This solar panel can turn solar energy into electricity for your use, and the conversion efficiency is very high. 2. ?NON POLLUTION?The device USES solar energy, which is naturally renewable and does not cause pollution or damage. 3. ?HIGH QUALITY?This solar panel is a high quality polysilicon solar panel, which provides stable and efficient energy output. 4. ?USAGES?This 4.2 watt solar panel is powerful but small, ideal for cell phones, tablets, camping lights or other devices, offering clean energy and superior unit space efficiency. 5. ?SERVICE?If you have any questions about this product, please contact us and we will try our best to solve them for you. Specification: Item type: Solar Panel Material: polycrystalline solar panel Color: As picture shown Weight: Approx. 110g Working voltage: 18V Working current: 0 230MA Open circuit voltage: 19V Short circuit voltage: 300MA Size: Approx. 200x130x2mm/7.9x5.1x0.1in Package List: 1 x Solar Panel