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The solar panel is used to charge the nickel-hydrogen rechargeable battery. When the light is sufficient, the solar panel generates current and voltage to charge the battery. At night, the battery outputs electric energy to the load through the light control function.The main features are no need of laying cables and wires, high efficiency and clean solar energy resources anytime and anywhere, firmness, durability, economy, energy conservation and emission reduction, and high-tech environmental protection. It can be as Multi - Direction Traffic Signal or Road Safety Signal Lamp or Three - Color Indicator Lamp
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