ti-force
Flashlight Enthusiast
I have the Foursevens Quark Tactical QT2L-X with Burst Mode here for review. This light was sent to me by Foursevens for review purposes. If you haven't seen my Quark X 123-2 review, you can see it here- click
For those of you who may not have heard, Foursevens has upgraded their popular QT2L-X by upgrading the circuitry to produce a massive amount of light in Max mode. Follow along to see just how much the light output in Max mode was increased compared to the QT2L-X non-Burst Mode.
Operation (Taken from Foursevens website):
"The Quark Tactical can memorize any two modes of output from its eight total modes to be instantly available. These two memorized modes are accessed by either tightening or loosening the head .
To have your Quark Tactical memorize a different mode: turn it on and loosen the head by a half-turn. Then tighten the head at least four times rapidly (twisting it tight then loose four times). After the fourth time leave the head tight or loose depending on which position you want to program.
The light will flash after three seconds to signal that it is ready to be programmed. Cycle through the eight available modes by clicking the tailcap off and on. The mode sequence is as follows:
· Moonlight-Low-Medium-High-Max-SOS-Strobe-Beacon
After finding your desired mode leave that mode on for ten seconds and the light will flash again to confirm that the mode has been memorized. To cancel programming simply turn the light off for three seconds before it flashes."
Specifications (Taken from Foursevens website):
Some pictures:
Packaging-
Included goodies-
The light-
XM-L2 Emitter-
Revised Circuit Board-
For those of you who may not be aware, I have my own calibrated homemade integrating sphere for measuring lumen output of different lights. My sphere has been calibrated using lights that were measured in a professional lab sphere, so my lumen results are very accurate. However, due to common variables such as temperature differences, battery charge state differences, and even differences within the components used within each and every light, you should only use my results as an example of what one sample outputs in OTF lumens. If you purchase one of these lights I'm sure the output would be similar, provided all variables are similar, but your light may not produce exactly the same output as this sample. The output could be less, the output could be more, it just depends.
Okay, now that I've got that out of the way, here are my OTF lumen results:
Here it is in Max Mode. As you can see, this little light puts out a massive amount of light, especially for such a small light. I'm very impressed:
And here it is directly compared to the previous Quark X without Burst Mode-
[FONT=Verdana, Arial, Tahoma, Calibri, Geneva, sans-serif] Here's my lumen data for this light running on a 17670 Li-Ion battery.[/FONT]
Oh, and I need to mention that the use of 17670 Li-ion's in this light has worked well for all of the 2xcr123 Foursevens lights I've ever tried, but there have been reports of others not being able to fit the 17670 into the battery tube because of its slightly larger diameter, so please try at your own risk. Foursevens recommends the use of cr123 primary batteries or rechargeable cr123 Li-Ion batteries in this light.
Max Mode AW 17670 Li-Ion-
Quark X 17670 vs QT2L-X Burst Mode 17670 (both AW 17670)-
QT2L-X AW 17670 vs cr123 primaries-
[FONT=Verdana, Arial, Tahoma, Calibri, Geneva, sans-serif] Here's my measured lumen data for various modes of this light.[/FONT]
I only tested out to 5 minutes in each mode because it would be extremely time consuming to run tests for each output mode until battery depletion. I have no way of data logging so I must remain with each light during every test session that I perform.
Low and Moonlight Modes-
High and Medium Modes-
And all modes in one graph-
In closing, I'm very impressed with this light. Not only does it output a tremendous amount of light in such a small form factor, it retains a very useable and long runtime in Max mode. For those of you who need (or want) large amounts of light in a small form factor, this is your light. Thanks for reading, and I hope you enjoyed my review.
For those of you who may not have heard, Foursevens has upgraded their popular QT2L-X by upgrading the circuitry to produce a massive amount of light in Max mode. Follow along to see just how much the light output in Max mode was increased compared to the QT2L-X non-Burst Mode.
Operation (Taken from Foursevens website):
"The Quark Tactical can memorize any two modes of output from its eight total modes to be instantly available. These two memorized modes are accessed by either tightening or loosening the head .
To have your Quark Tactical memorize a different mode: turn it on and loosen the head by a half-turn. Then tighten the head at least four times rapidly (twisting it tight then loose four times). After the fourth time leave the head tight or loose depending on which position you want to program.
The light will flash after three seconds to signal that it is ready to be programmed. Cycle through the eight available modes by clicking the tailcap off and on. The mode sequence is as follows:
· Moonlight-Low-Medium-High-Max-SOS-Strobe-Beacon
After finding your desired mode leave that mode on for ten seconds and the light will flash again to confirm that the mode has been memorized. To cancel programming simply turn the light off for three seconds before it flashes."
Specifications (Taken from Foursevens website):
DIMENSIONS | Length: 4.5 inches Body diameter: 0.86 inches Head diameter: 0.86 inches Weight (without batteries): 1.8 oz |
LED EMITTER | CREE XM-L2 |
VOLTAGE RANGE | 3V-9V |
SPOT BEAM | Angle: 13.9 degrees Diameter at 3 meters: 730mm |
FLOOD BEAM | Angle: 73 degrees Diameter at 3 meters: 4.44 meters |
BRIGHTNESS LEVELS | Moonlight: 0.5 lumens, 25 days Low: 5 lumens, 4 days Medium: 55 lumens, 14 hrs High: 300 lumens, 3.2 hrs Max:Burst at 780 lumens, 1 minute then 390 lumens, 1.9 hrs |
SPECIAL MODES | Strobe: 10 hz, 1 hrs SOS, 4 hours Beacon, 12 hrs |
REFLECTOR | Textured |
BODY MATERIAL | Type-III hard-anodized aircraft-grade aluminum |
BEZEL MATERIAL | Type-III hard-anodized aircraft-grade aluminum |
LENS MATERIAL | Impact-resistant glass, sapphire coating, antireflective coating |
INCLUDED ACCESSORIES | Batteries, lanyard, split ring for keychain attachment, spare o-ring, holster, hand-grip |
Some pictures:
Packaging-
Included goodies-
The light-
XM-L2 Emitter-
Revised Circuit Board-
For those of you who may not be aware, I have my own calibrated homemade integrating sphere for measuring lumen output of different lights. My sphere has been calibrated using lights that were measured in a professional lab sphere, so my lumen results are very accurate. However, due to common variables such as temperature differences, battery charge state differences, and even differences within the components used within each and every light, you should only use my results as an example of what one sample outputs in OTF lumens. If you purchase one of these lights I'm sure the output would be similar, provided all variables are similar, but your light may not produce exactly the same output as this sample. The output could be less, the output could be more, it just depends.
Okay, now that I've got that out of the way, here are my OTF lumen results:
Here it is in Max Mode. As you can see, this little light puts out a massive amount of light, especially for such a small light. I'm very impressed:
And here it is directly compared to the previous Quark X without Burst Mode-
[FONT=Verdana, Arial, Tahoma, Calibri, Geneva, sans-serif] Here's my lumen data for this light running on a 17670 Li-Ion battery.[/FONT]
Oh, and I need to mention that the use of 17670 Li-ion's in this light has worked well for all of the 2xcr123 Foursevens lights I've ever tried, but there have been reports of others not being able to fit the 17670 into the battery tube because of its slightly larger diameter, so please try at your own risk. Foursevens recommends the use of cr123 primary batteries or rechargeable cr123 Li-Ion batteries in this light.
Max Mode AW 17670 Li-Ion-
Quark X 17670 vs QT2L-X Burst Mode 17670 (both AW 17670)-
QT2L-X AW 17670 vs cr123 primaries-
[FONT=Verdana, Arial, Tahoma, Calibri, Geneva, sans-serif] Here's my measured lumen data for various modes of this light.[/FONT]
I only tested out to 5 minutes in each mode because it would be extremely time consuming to run tests for each output mode until battery depletion. I have no way of data logging so I must remain with each light during every test session that I perform.
Low and Moonlight Modes-
High and Medium Modes-
And all modes in one graph-
In closing, I'm very impressed with this light. Not only does it output a tremendous amount of light in such a small form factor, it retains a very useable and long runtime in Max mode. For those of you who need (or want) large amounts of light in a small form factor, this is your light. Thanks for reading, and I hope you enjoyed my review.
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