Build a drummer robot that marches along, beating a drum an armadillo robot that does somersaults a solar bug that crawls on six legs, and more! The 48-page, full-color manual guides solar power pioneers through model assembly and offers fun scientific facts about the real-life applications of solar technology. This controller will serve as a connector between the solar panel and the batteries. I ordered one of these kits off eBay last night, then found my local shop selling them so I bought one from there too. This manual comes under the category toys and has been rated. If you have purchased a RENOGY Off-Grid Solar Kit, a PWM Solar Charge Controller is also included in the package. View the manual for the Merlin 6-IN-1 DIY Educational Solar Robot Kit here, for free. Using the latest, fastest technology, SmartSolar maximises this. Build unique robots that are powered by the sun - batteries not required! Using a compact solar panel, these cool little bots harness energy from the sun to power an electric motor to get moving. Each kit comes equipped with a high quality solar panel that features highly efficient silicon solar cells. A solar charger gathers energy from your solar panels, and stores it in your batteries.