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What is causing a white scale buildup at copper pin connection on LED light sticks and how can they be cleaned? - Electrical Engineering Stack Exchange
![What is causing a white scale buildup at copper pin connection on LED light sticks and how can they be cleaned? - Electrical Engineering Stack Exchange What is causing a white scale buildup at copper pin connection on LED light sticks and how can they be cleaned? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/24LYQ.jpg)
What is causing a white scale buildup at copper pin connection on LED light sticks and how can they be cleaned? - Electrical Engineering Stack Exchange
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