Specifications:
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Button outer diameter: 41mm
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Buckle position diameter: 34mm
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Total length of keys: 63mm
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Working voltage: 12V-15V
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Connection terminal specification: 2510 - 3Pin
3P line position function:
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Red line (+12V power supply line input)
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Black line (key LED negative control input)
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Yellow line (positive output of key switch)
Function description: