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開箱測試led電視背光測試儀 檢測led,燈珠,燈條 違規操作行嗎 像這樣的工具好不好用? 真的不燒led嗎? 值得買嗎? 海賊王diy日記

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The LED light is broken, it is not necessarily a problem with the lamp beads and the power supply