Specification: Item Type: Polysilicon Solar Panels Weight: approx. 99 g/3.5 oz. Material: polysilicon Product size: approx. 200 x 130 mm/7.9 x 5.1 inches. Current: 0-230mA. Power: 4.2 W. Operating voltage: 18 V. Features: No energy storage function Package list: 1 x Solar Panel Features Manufacturing Material The solar panels are made of high quality polysilicon, strong and resistant to high temperature and stable performance. HIGH PERFORMANCE - Portable mini solar panel for flexible DIY applications. Environmental protection and energy saving, high conversion rate, high output efficiency. Wide Application Suitable for all kinds of small electrical appliances, emergency lighting, advertising lights, traffic lights, home lighting, fans, such as solar water pumps, solar street lights, small solar systems, etc. Exquisite Craftsmanship: Unique craftsmanship makes the components beautiful, small attenuation, good reliability, long service life and easy use. ENERGY SAVING & ENVIRONMENTAL PROTECTION: An important electrical component to convert solar energy into electricity to use. No energy storage function