EDUCATION: Solar panels are devices that take in daylight hours and convert photo voltaic radiation directly or indirectly into electricity by way of photoelectric or photochemical effects, it is best instruments for science project. DIY YOUR OWN SMART MODEL: Build your own powered models, photo voltaic toys, solar lights, photo voltaic displays, charging small DC batteries. It can be used for coaching purpose. Many of our prospects e from school, colleague, etc. CONNECT SOLAR PANELS IN PARALLEL OR IN SERIES: When the voltage of your photo voltaic panel doesnt satisfy your storage battery, you may take two or extra identical photo voltaic panels together in series. Such as, two 9V solar panel join collectively in series, so its voltage is 18V. When the voltage of solar panel satisfies your storage battery. In order to speed up the speed of charge, you could possibly take two or more same solar panel together parallel connection. SOLID & WORK LONG HOURS: High conversion rate, high efficiency output, preferrred prone soft effect, as lengthy as there could also be sunshine, it's going to work all the time. The shell is fabricated from tempered glass and plastic yellow frame, which preserve photo voltaic panels, and increase the lifetime of photo voltaic panels. ENVIRONMENTAL PROTECTION: Use solar panels to chop your carbon footprint, because it is green and renewable energy. Unlike normal generators, solar energy doesn't release any dangerous carbon dioxide. Perfect for small projects: Such as emergency lights, commercial lamps, site visitors lights, family members lights, electrical fans, solar water pumps, photo voltaic road lamps, etc. Category:Solar Panels Max. power: 5W Max. voltage: 10V Current: 220mA Weight: 300g/0 Size: solar panel 14x13cm, fan 12x12cm Colour: black, yellow Material: monocrystalline silicon, plastic Package Contents: 1 * Solar Panel 1 * Exhaust Fan Only the above equipment content, other item will not be included. Note: Light taking pictures and sundry displays may cause the colour of the item in the photograph somewhat diversified from the genuine thing. The length allowed error is +/- 1-3cm.