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This electric toothbrush uses a battery to store the solar energy collected by the solar panels.
The advantages to do this include:
1.The charging mode is simplified. The old charging equipment is removed, and the production cost is reduced while being convenient to carry.
2.The charging conditions are reduced. The requirements for the timing and environment of charging become lower.
3.Clean energy is achieved. Lower energy consumption is achieved from production to application, compared with the original basis.
Users don't need to worry for can't find the charger with the interface.
He Nan Ping Ding Shan, China