SCEMan
Flashlight Enthusiast
Awesome review ti-force!
Your runtime charts are exactly what is needed :thumbsup:
Your runtime charts are exactly what is needed :thumbsup:
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.
And here it is directly compared to the previous Quark X without Burst Mode-
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.
FIRST INTERROGATION :
1.- If the QP2L-X has 500 lumens for 3 min before stabilizing at 360 lumens.
2.- and the QP2L-X with Burst has 800 lumens for 1 min before stabilizing at 410 lumens
3.- with this info should I expect my QP2L-X gen 2 to have 600 lumens for 3 min and stabilize at 430 lumens ( 360 X 20% ) ?
SECOND INTERROGATION :
1.- « Studies have shown that since the eye perceives light intensity on a logarithmic scale, it actually takes four times the output for the eyes to see double the output. » -- Quoted from FOURSEVENS email.
A.- Based on this info what will be the difference live between the 800 lumens QP2L-X with Burst and my QP2L-X gen 2 with probably 600 lumens for the first 3 min ? Any ?
B.- And also what will be de difference between the QP2L-X with Burst with a maximum of 410 lumens and the expected maximum of 430+ lumens with the QP2L-X gen 2 ( 360 + 20% ) ? Any ?
THIRD INTERROGATION :
1.- « The difference between the full output of the Burst mode and 50% of Burst mode will not be that significant but runtime will more than double. » -- Quoted from FOURSEVENS email.
A.- Based on this info why the QP2L-X with Burst has a High at 300 lumens and the maximum is at 390 lumens ; the difference is so minimal that we won't see any difference except for the runtime ? My QP2L-X gen 2 has a High of 160 lumens from 65 but for the QP2L-X with Burst the jump is from 55 lumens to 300...
I don't see why I should buy the QP2L-X with Burst having already something hard to beat with the QP2L-X gen 2.
Is somebody can explain me what I am missing, what I don't understand, or is my way of thinking has something good ? Thank you very much. I don't know what's happening but my Enter key does'nt work at all in the forum. This is the first time I see this happening. I hope you will understand my thinking because I write with a french accent...
I don't see why I should buy the QP2L-X with Burst having already something hard to beat with the QP2L-X gen 2.
Is somebody can explain me what I am missing, what I don't understand, or is my way of thinking has something good ?
Any pre_flash in this one?
Any pre_flash in this one?
Sent from my DROID RAZR HD using Tapatalk 2
No pre-flash here either. If memory serves correctly, I think Foursevens made changes to eliminate pre-flash back when they released the first Quark X.
They weren't very successful at it, then. I bought a Quark QP2A-X (XML2 version) a couple of months ago, and there's definite pre-flash on moonlight mode. It's brief, not annoying bright, but it's definitely there.
There's none on my Preon. So, maybe it's only a problem with moonlight modes that are current-regulated, not PWM.
I'm interested in the Pro model like this. Does it take 18650 batteries if not, why the heck not, the are around 1mm difference and 18650 is now a very normal standard battery size.
I'm surprised that Foursevens doesn't really support 18650 batteries in their lights. I thought they were on top of the battery scene pretty well.
quarks were designed to be quite small and lego-able so naturally 18650 is too fat for them. so just use the 16650 or 17670
their larger MMX and MMS are 18650 compatible
Why don't they just make an optional 18650 body people can buy? 18650 is a standard that is 2x123A compatible and 18650 batteries can be purchased by the flashlights in Cabela's and Gander Mountain. I can't however purchase 16650 or 17670.