What does this part of my headlamp do?

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bm_mode
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Joined: 10/20/2022 - 22:32
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What does this part of my headlamp do?

Just curious - does this contain any important circuitry other than a red LED indicator light? It screws onto the end of battery case on my LEDLenser iLH8r head lamp.

 

Vegas LED Fan
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Joined: 11/05/2017 - 14:51
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Looks to me like the on/off switch but with an indicator included.