The solar cell phone charger is one of our flagship kits.  Which learner does not want a mobile charger using the sun as power supply?  Learners love assembling and soldering this kit. The electronics theory is practically demonstrated.   The mobile charger  is curriculum based as Renewable Energy is in the Gr 7, Grades  9 and 11 curriculum.   For Technology teachers and learners it is relevant as components such as capacitors, resistors, LED’s and diodes are used.