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QUARK QK16L MKIII
FLASHLIGHT
"CLICKY" INTERFACE AND
OPERATION
QUARK lights have a "clicky" user
interface – the light is controlled by
clicking or pressing the tail cap switch to
turn the light on or o.
A light “press” on the switch activates
the light in momentary mode. A full
“click” latches the light on or o.
MODES AND MEMORY
When the light is on, change modes with
a quick o/on cycle (less than 1 second).
Mode memory is a “hybrid” type that
remembers the last setting, but reverts
to mode 1 of the current configuration
on the next mode change.
USER PROGRAMMING
The QUARK has six user selectable
configurations. Enter the configuration
menu by cycling the light 10 times in
less than 3 seconds. Use a momentary
“press” (not a “click”) when entering
configuration mode. The light blinks a
number of times equal to the configuration number selected. Cycling the
button one time changes to the next
configuration. Leaving the light o for 5
seconds saves the current configuration
to memory.
CONFIGURATIONS
(1) High + Burst
(2) Max / Strobe
(3) Medium / High + Burst
(4) Low / Medium / High + Burst
(5) High / Medium / Low + Burst
(6) L/M/H/Strobe/SOS/Beacon + Burst
Please Note: Configuration 2 does not
have Burst mode because the default
output is already 100%.
MODES
Low (Moonlight) = 1 Lumen
Medium = 100 Lumens
High = 400 Lumens
Max = 700 Lumens
Burst = 700 Lumens
SOS = International Distress Signal
Strobe = 700 Lumens @ 20Hz
Beacon = 2 blinks every 5 seconds
BURST MODE (100% OUTPUT)
Typically 100% output is not needed.
Burst mode is a battery saving feature.
If you do need full output, activate burst
mode with two very quick cycles (‹.25
seconds). Burst mode has no memory,
so the light will return to the last saved
mode.
The light maintains Burst Mode for 30
seconds and then ramps down to High
mode over the next 30 seconds to
prevent over heating.
LOW BATTERY WARNING
The driver does not have a built in low
battery warning. If the light dims, fails to
activate, or begins to blink, the battery
needs to be replaced/recharged.
Best practice is to replace/recharge
the battery before it is completely
empty. Modern rechargeable batteries
will last longer if you recharge them
before they are fully depleted.
If the battery is fully depleted you may
trip the low voltage protection circuit,
disabling the battery. In most cases the
Flex charger can reactivate it, but fully
depleting the battery should be avoided.
BATTERY INSTALLATION
The battery should be installed with the
(+) terminal facing the head. NEVER
install batteries backwards.
BATTERY COMPATIBILITY
The best battery to use is the
Foursevens 16650 Li-Ion rechargeable
provided with your flashlight. To
purchase batteries and chargers, please
visit the link at the bottom of the next
page.
The QUARK QK16L MKIII will accept
2xCR123 or 2xRCR123 batteries.
However, we STRONGLY ADVISE
AGAINST THEIR USE. Catastrophic
failure can occur when one of the two
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cells is not functioning correctly,
causing thermal runaway in the other
cell. There is a significant risk of fire
and/or explosion when using two
cells.
MAINTENANCE
If the threads become dirty or gritty,
clean them with a soft tissue and/or
cotton swab. Reapply lubrication to the
threads and o-ring to maintain smooth
operation and prevent damage. If the
o-ring dries out, it may tear when
replacing batteries.
Spare o-rings are included with the
QUARK. You probably won't need them,
but if the main o-ring ever breaks or tears,
you'll have a replacement on-hand.
SPECIFICATIONS
Best Battery: 16650 Li-Ion
Alternate Battery: 2x(R)CR123
Voltage Range: 2.8V-8.4V
Dimming: Constant Current
LED: Nichia 319A (5000K)
CRI (Color Rendering Index): 80+
Bump Protection: software prevents
accidental mode changes if dropped.
A 16650 size Li-Ion rechargeable battery is
included with your light. This light will accept
2x(R)CR123 batteries, but we don’t recommend
them. See the warning on the previous page.
Purchase batteries and chargers at:
www.darksucks.com/recharge
QUARK QK16L
MKIII
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