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頭燈驅動板

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買了一個新頭燈用了幾天居然不會亮了輸出到燈珠剩0.3V 0.4A詢問賣家,說松下NCR18650B輸出超過4A是動力電池造成驅動板燒掉這板子大約直徑3cm,用XHP70.2燈珠有建議換哪種板子?

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