SKU Nitecore T4K Light Source 4 x CREE XP-L2 V6 LEDs Brightness 4000 Lumens (Max) Power Supply USB-C rechargeable built-in Li-ion battery (1000mAh) Usage Duration Turbo: 4000 lumens / -- min High: 200 lumens / 2 hours 45 min Mid: 65 lumens / 7 hour Low: 15 lumens / 21 hour Ultra-low: 1 lumen / 67 hour Waterproof Level IP54 Beam Distance 209 M (Max) Size 82.3mm x 30mm x 29.2mm Weight 77g Highlights Utilizes 4 x CREE XP-L2 V6 LEDs with a max output of 4000 lumens Max peak beam intensity of 10,900cd and ma throw of 209 meters Utilizes a total reflective optic lens for uniform and soft light Multifunctional OLED real-time display shows lumens, battery voltage, runtime etc Built-in 1,000mAh Li-ion battery Advanced Power Cut-off (APC) technology for an ultra-low standby power consumption Built-in Li-ion battery charging circuit with a USB-C port High efficient constant current circuit provides a stable output up to 67 hours 2 user modes available (DEMO Mode and DAILY Mode) Concealed Cooling Design Mechanical Quick Release Design Dual side switch design 5 brightness levels available with direct access to TURBO Intelligent mode memory function 2 lockout modes available (Half Lockout Mode and Full Lockout Mode) Versatile Deep Carry Pocket (DCP) Clip Incorporated Advanced Temperature Regulation (ATR) module Metal ring pull able to withstand up to 30kg of weight HA III hard-anodized finished Impact resistant to 1 meter IP54