Detailed Product Description
By using semiconducting material, and putting the thinner model N semiconductor on the thick P semiconductor, when the photon hitting the surface of this equipment, the adjoining plane of the model P and model N semiconductor will create the electron scattering to produce the electric current. The electric current can be stored up in the accumulator. It does not need to replace the battery, and an touchable switch is available. Moreover, it is convenient to take when traveling. Packing: Blister + paper card Can be designed by clients
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