Nitecore T4K Manual
Also see for T4K: User manual
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T4K• Multifunctional OLED Real-Time Display• Advanced Power Cut-Off (APC) Technology• USB-C RechargeableQuad-Core IntelligentKeychain LightQ&AQ: Why does my T4K shut down in 30 seconds?A: The T4K has 2 user modes, DEMO Mode and DAILYMode. The default setting is DEMO Mode where theproduct will automatically shut down if there is nooperation in 30 seconds. It is recommended to switchit to DAILY Mode when in daily use.Please follow the steps below for mode switching:1. When the light is on/off, long press both the PowerButton and the Mode Button simultaneously to switchbetween DEMO and DAILY Mode.2. The LEDs will flash to indicate the current user mode:1 flash to indicate DEMO Mode and 2 flashes toindicate DAILY Mode.TURBO HIGH MID LOW ULTRALOWBrightness 4,000Lumens200Lumens65Lumens15Lumens1LumenRuntime – 2h 45min 7h 21h 67hBeamDistance 209m 45m 24m 13m 3mPeak BeamIntensity 10,900cd 520cd 140cd 43cd 3cdImpactResistance 1m (Impact Resistance)WaterResistance IP54Note: The stated data is measured using the built-in Li-ion battery(1,000mAh) under laboratory conditions. The data may vary in realworld use due to different battery usage or environmental conditions.OLED DisplayMode ButtonPower ButtonQuick ReleaseButton(Hold and pullfor quick release)Technical DataSpecificationsAccessoriesFeatures(English)Operating InstructionsCharging Function• Utilizes 4 x CREE XP-L2 V6 LEDs with a max output of 4,000 lumens• Max peak beam intensity of 10,900cd and max throw of 209 meters• Utilizes a total reflective optic system for uniform and soft light• Multifunctional OLED real-time display for lumens, battery voltage,runtime etc.• Built-in 1,000mAh Li-ion battery• Advanced Power Cut-Off (APC) technology for an ultra-low standbypower consumption• Built-in Li-ion battery charging circuit with a USB-C port• Highly efficient constant current circuit provides a stable output up to67 hours• 2 user modes available (DEMO Mode and DAILY Mode)• 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)• Incorporated Advanced Temperature Regulation (ATR) module (PatentNo. ZL201510534543.6)• Metal ring pull able to withstand up to 30 kilograms of weight• HA III hard-anodized finish• Impact resistant to 1 meterDimensions: 82.3mm×30mm×29.2mm(3.24"×1.18"×1.15") (Clip Included)Weight: 77g (2.72oz) (Clip Included)USB-C Charging Cable, Key ClaspOperating InstructionsMultifunctional OLED DisplayThe T4K is equipped with a multifunctional OLED display. (Pleaseremove the screen protector before the first use.) When the light isturned on, the screen will successively show the current info (BrightnessLevel & Lumens, Runtime Remaining, User Mode) before it goesout. After the screen goes out, short pressing the Mode Button canreactivate the screen.Display Demonstration Function• This function is used for demonstration ONLY. It does not reflect theactual light status.• When the light is off, keep holding the Power Button even afterULTRALOW is accessed until the light is turned off to enter thedisplay demonstration.• In this status, the screen will cycle through various informationaldisplays. Short press either button to exit this status.On / OffOn: When the light is off, short press the Power Button to turn it on.Off: When the light is on, short press the Power Button to turn it off.User ModesThe T4K has 2 user modes, DEMO Mode and DAILY Mode.DEMO Mode: The light will automatically shut down if there is nooperation in 30 seconds (reactivating the screen excluded). Thecountdown will be displayed on the screen.DAILY Mode: The light will not automatically shut down and will needto be shut down manually.Note: The default setting is DEMO Mode. It is recommended to switchit to DAILY Mode when in daily use.Mode SwitchingWhen the light is on/off, long press both the Power Button and theMode Button simultaneously to switch between DEMO and DAILY Mode.The LEDs will flash to indicate the current user mode: 1 flash to indicateDEMO Mode and 2 flashes to indicate DAILY Mode.(In this process, the screen will show “DEMO” or “DAILY” to indicate thecurrent user mode.)Note: Reactivating the light within 3 seconds after it automaticallyshuts down in DEMO mode will temporarily access DAILY Mode until it isturned off.Brightness LevelsWhen the light and the screen is on, short press the Mode Button tocycle through the following brightness levels: ULTRALOW – LOW – MID– HIGH. The flashlight will directly access the previously memorizedbrightness level when reactivated.Note: When the screen is off, short press the Mode Button to activatethe screen before adjusting the brightness level.Direct Access to ULTRALOWWhen the light is off, long press the Power Button to directly accessULTRALOW.Direct Access to TURBOWhen the light is on/off, press and hold the Mode Button to accessTURBO. Release to return to the previous status.Note:1. When activating TURBO, a countdown progress bar will be shown onthe display to indicate the activation time for TURBO after showingthe current brightness level and lumens.2. If continuing to hold the Mode Button after the progress bar isdepleted, the flashlight will access HIGH Level instead and thedisplay will turn off.3. The activation time for TURBO depends on the thermal status of theflashlight. The higher temperature the flashlight gets, the shorteractivation time for TURBO when it is reactivated.4. Use caution when operating the light in TURBO to avoid overheatingand step down to a lower level if the light becomes too hot tohandle.The T4K has two lockout modes (Half Lockout Mode and Full LockoutMode).Half Lockout Mode (Lockout 1):• When the light is on, press and hold the Power Button until thescreen shows the Lockout 1 icon. The light will turn off and accessHalf Lockout Mode.• When in Half Lockout Mode, the Power Button is unavailable toactivate the flashlight. Holding the Mode Button is still available foraccessing TURBO.Full Lockout Mode (Lockout 2):• When the light is on, keep holding the Power Button even afteraccessing Half Lockout Mode until the screen shows Lockout 2 icon.The light will turn off and access Full Lockout Mode.• When in Full Lockout Mode, both buttons are unavailable to activatethe flashlight.Unlock:• In either Lockout Mode, short press and then long press the PowerButton, during which the screen will show an unlock icon and aprogress bar, until the flashlight is activated to exit Lockout Mode.The light will access the previous memorized level.• The light will be automatically unlocked when being recharged ineither Lockout Mode.ATR (Advanced TemperatureRegulation)The integrated ATR technology regulates the output of the T4Kaccording to the working condition and ambient environment tomaintain the optimal performance.Power IndicationWhen the light is off, short press the Mode Button to display the batterylevel, the battery voltage, the memorized brightness level and thecurrent user mode before it goes out. Different voltages represent thecorresponding remaining battery power levels:Note: When the battery voltage is below 3.4V, the blue power indicatorbeneath both buttons will flash every 2 seconds to inform the user torecharge the battery as soon as possible.Charging FunctionThe T4K is equipped with an intelligent charging system. Please chargethe battery before the first use.Connecting to the External Power: As illustrated, use the USB cableto connect an external power supply (e.g. a USB adapter, a computeror other USB charging devices) to the USB port to begin the chargingprocess. The charging time is approx. 1 hour 30 minutes.Charging Indicator: During the charging process, the chargingindicator will flash slowly to inform the user and the screen will showthe current battery level. When the battery is fully charged, thecharging indicator will become steadily turned on to inform the user andthe screen will display a full battery level.Note: The light can still be activated during the charging process.(TURBO excluded)Warnings1. The TURBO Brightness Level of 4,000 lumens will produce massiveheat rapidly during long-time activation. Use caution when operatingthe light in TURBO mode to avoid overheating and step down to alower level if the light becomes too hot to handle.2. CAUTION! Possible dangerous radiation! Don't look into the light!May be dangerous for your eyes.3. Please recharge the product every 3 months when left unused for aprolonged time.4. The product contains small assembly parts. Please keep it away fromchildren to avoid danger of choking or suffocation.5. When the flashlight is kept in the backpack, please activate theLockout Mode to prevent accidental activation.6. DO NOT disassemble, modify or reconstruct the product, otherwisethe warranty will be nullified, and the product might be damaged.（Half Lockout Mode） （Full Lockout Mode）Low power Full power3.5V 3.7V 3.9V 4.2VWarranty ServiceAll NITECORE ® products are warranted forquality. Any DOA / defective product can beexchanged for a replacement through a localdistributor/dealer within 15 days of purchase.After that, all defective / malfunctioningNITECORE ® products can be repaired freeof charge within 24 months from the dateof purchase. Beyond 24 months, a limitedwarranty applies, covering the cost of labor andmaintenance, but not the cost of accessories orreplacement parts.The warranty will be nullified if1. he product(s) is/are broken down,reconstructed and/or modified by unauthorizedparties;2. the product(s) is/are damaged due toimproper use.For the latest information on NITECORE®products and services, please contact a localNITECORE® distributor or send an email toservice@nitecore.com※ All images, texts and statements specifiedherein this user manual are for referencepurposes only. Should any discrepancy occurbetween this manual and information specifiedon www.nitecore.com, Sysmax InnovationsCo., Ltd. reserves the rights to interpret andamend the content of this document at anytime without prior notice.SYSMAX Innovations Co., Ltd.TEL:FAX:+86-20-83862000+86-20-83882723E-mail:Web:info@nitecore.comwww.nitecore.comAddress： Rm 2601-06, Central Tower,No.5 Xiancun Road, Tianhe District,Guangzhou,510623, Guangdong, ChinaPlease find us on facebook : NITECORE FlashlightMade in ChinaT06014K21Lockout / Unlock |
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