High-quality components: solar panel, battery, diode, 20 Ohm resistance, IR sensor, LED bulb, three pin on-on switch, NPN transistor, red and blue wires.
4 hours of solar charging provides 8-10 hours of light.
Online training is required. You will need a soldering iron, wires, insulation tape and tools.
Secondary Schools as part of Physics and Design courses (ages 12-16);
Team and group-building events, if sufficient time is available;
Individuals who are interested in learning to build and design their solar lamps from scratch.