SP31 V3 18650 Tactical Flashlight
Sofirn SP31 V3 is a tactical flashlight designed with dual switches, which ensures you toggle between brightness levels, strobe mode, and more effortlessly.
ANSI/NEMA FL1 Chart
SST40:

Specifications
1.Emitter: 1*High-powered LED2.Battery Option: 1×18650 battery
3.Working Voltage: 3.0V-4.2V4.Mode Operation: side e-switch + tactical tail switch
5.USB Type-C charging6.Material: AL6061-T6 aluminium alloy
7.Water Resistance: IP68 waterproof8.Size: 25*25.2*122mm
9.Weight: 62g(without battery)10.Reverse polarity protection from improper battery installation.
11.Advanced Temperature Regulation (ATR) technology: In High or Turbo mode, flashlight heats up easily. To prevent over-heating, SP31 V3 monitors the temperature and adjusts automatically to lower brightness levels when the temperature reaches 55 degrees. 12.Low Voltage Warning: Low Voltage Warning: When the flashlight is powered on, the red indicator flashes for 5 seconds when the battery voltage is lower than 3.15V; while it keeps flashing when the battery voltage is lower than 3.0V, indicating that the remaining battery power is poor and to get it recharged or replaced in time.
General Operation
Battery Level Indicator
After turning on the SP31 V3, the indicator will display the power status for 5 seconds.
Green Constant On = 70%-100%Red Constant On = 30%-70%
Red Flashes = 1%-30%
Light Indicator When Charging
Red = ChargingGreen = Fully Charged
SP31 V3 offers a USB type-C charging port for convenient charging. Please connect it with the included charging cable and use a USB power adapter (not included) with 5V/2A (max) output.Note: Only low mode is available when charging.