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The luminous efficiency and lifetime of a LED luminaire is closely related to its operating temperature. Overheat or working at higher temperature would substantially decline the luminous efficiency and lifetime. However, the heat generated by the LED lights, also is a kind of energy available. If we can make good use of this energy, and reduce the LED light temperature in the meantime, it can be described as double benefit. In this thesis, a heat exchange system of the LED lighting is developed by a single-chip power IC PS2100 as the control core. This system integrates a LED lighting, a heat exchange module, a hot water supply system, as well as the sensing of voltage, current, temperature and water flow and so on. The heat absorption by the water in the heat exchange module can effectively reduce the temperature of a LED lamp. Meanwhile, supplying the water absorbing heat into the hot water supply system can also reduce the heating time and power consumption as well, to achieve energy saving and carbon reduction. The system can be for different occasions by adjusting the number of LED lamps and heat exchange systems. This study shows that the larger the installation place, the more significant the effect of power saving and carbon reduction.
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