Detector 1. Indicator light display: Low battery: Red light flashing quickly Charging: Red full: Light off. Filter wavelength: below 600hm, cut-off induction wavelength: 760-1 100nm. Switch on/off in Chang'an, briefly press to cycle between the first gear (red light always on) and the second gear (red light flashing), and in the third gear SOS mode, clear the eyes and approach the red light filter.
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