Function
Illumination, a great alternative of kerosene lamp

Form
Solar panel, control box, 0.5 LED light

Theory
Solar panel charges battery under sunshine to enable illumination by lights at night.

Parameters
Poly solar panel:2W, 6V
Control box: charge protection, discharge protection, overcurrent protection, work indicator, two 3.7V output circuits
LED light: 0.5W, 3.5V, 1pc