Solar Cell with wires, 12.0V, 45mA, High efficiency small, can easily be connected together for larger load applications including higher voltage and current loads. Compact size with rugged, attractive casing. Perfect for charging 9V NiMH rechargeable batteries.
Solar Thermal Exploration Kit, Explore variables such as box color, light intensity, tube design, rate of water pumping, and amount of time it takes to heat water. Includes some basic information on solar water heating systems and how they work