Q: What kind of LED is used in TK17?
A: One CREE XHP50.3 HD with a lifespan of 50,000 hours.
Q: What is the color temperature of TK17?
A: Around 5700K.
Q: What is the operating voltage of TK17?
A: The operating voltage is 3.0V - 4.2 V.
Q: Is TK17 rechargeable? How long is the charging time?
A: Yes. The package comes with a Fenix ARB-L21-6000B battery that features a USB-C port. Unscrew the light tail to take out the battery, then connect the USB Type-C end of the charging cable to the battery to start charging. The normal charging time of the included Fenix ARB-L21-6000B battery is approximately 4 hours from depletion to fully charged with a 5 V/2 A charging adapter.
Q: How to prevent accidentally activating the TK17?
A: Turn off the light and unscrew the tail cap half a turn or remove the battery to prevent accidental activation.
Q: Why does the TK17 downshift to a lower mode after being used for a while and the higher mode cannot be selected?
A: There are two reasons:
1. Intelligent Overheat Protection
The flashlight will accumulate a lot of heat when used at high output levels for extended periods. When the light reaches a temperature of 60°C or above, the light will automatically step down a few lumens to reduce the temperature.
2. Low-voltage Warning
When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until the Low mode is reached.
Q: Why does the TK17 happen to flicker?
A: The reasons that may cause the light to flicker, shine intermittently or even fail to illuminate:
1. Poor battery level. The flashlight blinks to remind users.
Solution: Recharge or replace the battery.
2. The contact or contact point of the battery or flashlight is dirty.
Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol.
If the above methods don't work, please contact your authorized distributor.
Q: What kind of battery can be used in TK17?
A: It is recommended to use a Fenix ARB-L21-6000B battery or other batteries of the Fenix ARB-L21 series. Other batteries are not recommended. As an unmatched battery may cause the flashlight to fail to work normally.
