Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
Advantages and disadvantages of LED lights
* Heat dissipation problem, if the heat dissipation is not good, the lifespan will be greatly shortened.
* The power saving of low-end LED lamps is still lower than that of energy-saving lamps (cold cathode tubes, CCFL).
* The initial purchase cost is high.
* Due to the strong directionality of the LED light source, the special optical characteristics of the LED need to be considered in the design of the lamp.
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