Battery Installation
Before first use, please unscrew the tail cap and remove the insulating paper. If the
battery needs to be replaced, make sure that the positive end of the new battery faces
the flashlight head when you put it in.
Battery Level Indicator
After turning on the SF16, the indicator will display the power status for 5 seconds.
Green Constant On = Saturated (75%-100%)
Green Flashes = Sufficient (50%-75%)
Red Constant On = Poor (25%-50%)
Red Flashes = Critical (0%-25%)
Note: The red indicator keeps flashing when the battery level is lower than 25%.
Light Indicator When Charging
Red = Charging
Green = Fully Charged
Note: Please turn the flashlight off when charging.
General Operation
ON/OFF: Single click the tail switch to turn the SF16 on and enter the last used mode.
Single click again to turn it off.
OUTPUT SELECTION: There are three different power levels. When the flashlight
is on, tap the tail switch to cycle through: Low→Medium→High.
FAQ
Q1：why the flashlight only works while plugged in?
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