- Sofirn SP40 uses XPL LED with a lifespan of 50,000 hours.
- Flashlight body: Aerospace grade 6061 grade aluminum alloy, CNC manufactured to Military Grade Specification type Ⅲ hard-anodized anti-abrasive finish to get solid built body, anti-crash geometry and better heat exchange.
- Reverse polarity protection from improper battery installation.
- Mode Memory: Last mode remembered – It memorizes the last brightness level used in the modes (except Strobe).
- Advanced Temperature Regulation (ATR) technology: ATR will adjust the brightness level automatically when the driver temperature reaches 55℃ to prevent overheating.
- Power Indicator: The LED indicator on side switch blinks in green for 5 seconds if remaining battery power is over 30%. When the indicator turns to red, battery is below 30%. Flashing red light indicates low power – replace or recharge battery ASAP.