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The competition weakened LED road lighting rational regression
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Explore: how to reduce the cost of chip links?
（2012/9/12）
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LED lighting industry in China is big but not strong
（2012/9/12）
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The competition weakened LED road lighting rational regression
（2012/9/12）
•
Explore: how to reduce the cost of chip links?
（2012/9/12）
•
LED lighting industry in China is big but not strong
（2012/9/12）
•
The competition weakened LED road lighting rational regression
（2012/9/12）
•
Explore: how to reduce the cost of chip links?
（2012/9/12）
•
LED lighting industry in China is big but not strong
（2012/9/12）
•
The competition weakened LED road lighting rational regression
（2012/9/12）
•
Explore: how to reduce the cost of chip links?
（2012/9/12）
•
LED lighting industry in China is big but not strong
（2012/9/12）
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Wall negative power supply output terminal labeled COM-V or why the difference?
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Published：2014/1/6
COM (COMMON) 指共地，长城产品标示依其输出的属性说明如下:
单组输出：正极（+V），负极（-V）
多组输出（共地）：正极（+V1，+V2.），负极（COM）
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