Flashing Red = critical power, please replace or recharge battery as soon as possible.
Charging
IF19 offers a USB type-C charging port for convenient charging. Please connect it with the included USB-A to
USB-C cable and use a USB power adapter (not included) with 5V/1A (max) output. It takes approximately 2.5
hours to fully charge one 1100mAh 18350battery.
Operation Instructions
STEPPED RAMPING
ON/OFF: Single click the switch to turn the light
CHANGE BRIGHTNESS LEVEL: When the flashlight is on, press and hold the switch and it will, starting from the
remembered brightness level, automatically cycle through Low, Medium, and High. The mode is selected when
the switch has been released. (Please note: Moon, Turbo and Strobe are not in the automatic cycle).
TURBO AND RETURN: In any setting, double click on the switch to enter into Turbo, single click again to return.
STROBE AND RETURN: when the flashlight is on non-lockout mode, triple click on the switch to enter into
Strobe, single click again to return.
LOCK/UNLOCK: When the flashlight is off, 4 fast clicks to lock the flashlight. LED blinks twice to signal that the
light is in lock mode. Fast two, three or four clicks on the switch to unlock it returning to previously used mode.
You can only use moonlight by holding the switch while being locked. LED will flash twice to indicate the
flashlight is in lock mode when you try other operations.
MOONLIGHT MODE: When the flashlight is off, hold the switch to enter into Moonlight. Then one click to turn
off or hold the switch again to enter Low cycling through the general brightness settings.
SWITCH BETWEEN DIFFERENT GROUPS
While the flashlight is on, fast four clicks to switch between group 1 and group 2. LED blinks twice to signal
that the group switch is completed.
SMOOTH RAMPING
ON/OFF: Single click the switch to turn the light
RAMPING UP/DOWN: Hold and press the switch to change brightness steplessly. Ramping changes its
direction when the switch is being pressed again within 1.5 seconds. The LED flashes once when it reaches the
lower or upper end of the ramp.
Other operations are the same as GROUP 1.
STANDBY LOCK/UNLOCK: When the flashlight turns off after 1 minute, it will automatically enter lockout
mode. Fast two, three or four clicks on the switch to unlock it returning to previously used mode. You can only
use moonlight by holding the switch while being locked. LED will flash twice to indicate the flashlight is in lock
mode when you try other operations.
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