• Sofirn SP33 V3 uses CREE XHP50B 3V LED with a lifespan of 50,000 hours
• Working Voltage: 3V-4.2V
• Battery Options: One 26650 Li-ion battery (Included)
• Dimension: 126.6mm (length)× 37.5mm (head diameter)
• Weight: 144±1 gram (without batteries)
• Flashlight body: Aerospace grade 6061 grade aluminum alloy hard-anodized anti-abrasive finish to get solid built body
• Toughened mineral glass lens 
• The waterproof level: IPX8
• Protect from improper battery installation
• Mode Memory : Last mode remembered  (except Turbo and Strobe)
• Advanced Temperature Regulation (ATR) technology: the brightness level will adjust automatically when the temperature goes up or down, there are 3 lines: 45℃, 55℃, 65℃, the higher the temperature is, the more the brightness will drop to prevent overheating. When the temperature is low enough, the brightness goes up again automatically.
• Power Indicator: Each time the light is turned on, the battery level indicator will automatically display the battery status for 5 seconds.
• Blue constant on: saturated
• Red constant on: poor
• Red flashes: critical

Mode Moon Low         Medium     High    Turbo

Output 1LM      150LM      450LM  1600LM    3500LM