Sofirn SP33S Manual página 2

 Operating voltage: 3.0V – 4.2V
 Battery options: 1*21700 (without protection board), 1*26650, or 1*18650
 Dimension: 126mm (length) × 36mm (head diameter)
 Weight: 139 grams
 Flashlight body: Aerospace grade 6063 grade aluminum alloy, CNC manufactured to hard-anodized
to military grade specification type III, anti-abrasive finish to get solid built body, anti-crash
geometry and better heat exchange.
 Double-sided tempered glass
 Water resistance: IPX-8 (up to 2 meter under water, not for diving)
 Mode Memory: memorizes the last brightness level used in the general modes (Eco/Low/Med/High)
 Reverse polarity protection from improper battery installation
 Low voltage warning: When the battery voltage is too low, the LED indicator in the side switch will
start to flash rapidly. Please recharge the battery.
 Low voltage protection: The flashlight steps down automatically when the voltage is lower than 3.0V.
It also turns off automatically if the voltage gets too low. Please recharge the battery.
 Advanced Temperature Regulation (ATR) technology: As the temperature rises, SP33S is
programmed to automatically step down and step up the brightness. These thresholds are set at
45°C, 55°C and 65°C. The higher the temperature gets, the more the brightness will drop. Once
temperature decreases, brightness will be increased again according to your selected mode.
Battery Specifications
Battery Type
Rechargeable li-ion battery
Rechargeable li-ion battery
Rechargeable li-ion battery
Battery Installation
Unscrew the tailcap to insert one 26650 battery with
the anode side (+) towards the head, then screw the
tailcap back on.
Important advice: If you purchased SP33S with a
battery included, please make sure to remove the
insulating paper on the negative battery pole and
charge the battery before first use.
Power Indicator
The LED indicator in the side switch shows the power status for 5 seconds after turning SP33S on.
Green = remaining battery power is good.
Red = remaining battery power is poor (less than 30%).
Flashing Red = critical power, replace or recharge battery as soon as possible.
Dimension & Quantity
21700 x 1
26650 x 1
18650 x 1
Nominal Voltage
3.7V
3.7V
With protection board,
3.7V the voltage output will
Compatibility
Yes, recommended
Yes
be limited