There are three instruments fitted on a plastic moulded base to run electrical equipment. Battery, solar cell and hand driven dynamo selectable via a knob fitted on the base.
Different components (motor & fan; electromagnet, heater; buzzer; and LED) also provided with kit to observe the effect of these three electrical energy conversion systems on the components. 2 x AA batteries supplied.

10% off full price until 30th August, or while stocks last.