Table 1: Details of parts of night solar lamp.

Serial numberPart nameSpecificationSizeCost

1Rechargeable battery3 V, general 5 cm × 2 cmRs. 30
2Solar panel (collector)Photovoltaic (PV) cells5 cm × 4 cmRs. 35
3LED20 mA and 3 V (2 numbers)1.5 cm × 0.5 cmRs. 5
4SwitchPlastic, 12 V, O.5 A1.5 cm × 0.5 cmRs. 5
5Glass on LED to form lampGeneral thin glass9 cm × 6 cmRs. 10
6Bottom plastic boxLight flexible thermoplastic material9 cm × 5 cmRs. 10
7Others: diode and connecting wiresNegligibleRs. 10