Expand your alternative energy lab experience by adding an additional polycrystalline solar panel to your kit. Discover how this 4-3/4"L x 3-1/2"W solar panel generates electricity (7.2 Volts, 1.44 Watts) through a series of experiments highlighted in your existing kit build instructions. Connect panels in a series or parallel to increase voltage or output. Includes 20"L insulated alligator clip leads. Solar Panel is recommended for Elementary and up.