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No it can't. The 2xt can't turn on in low in CUI unless the user left it on low the last time they used it.
The CUI is so easy to change that I just re-adjust it for day and night usage. During the day I set it up above mid-point in output, at night drop it closer to low, or all the way to minimum.Being very close to pulling the trigger on this light, I have gone through most of the LF2XT threads but still am a little confused about the operation of the light in CUI. Can I go straight to the minimum output (2Clicks) without having the initial user-defined level (1Click) coming on first? From what I've gathered, the initial start up happens instantly, so it doesn't look like I could do 2 quick clicks to go straight to low-low.
Could one of you owners clarify this for me?

AR coated glass does transmit more light. But sapphire offers unparalleled scratch resistance and at a negligible loss of light (IMO). Since the sapphire is an aftermarket part, you always have the option to switch back to the original AR if needed.Ku - Any comments on the sapphire vs. AR-coated glass transmittance?
I have two LF2XTs. I'd like to have a couple more. :huh: It is my favorite light and I have many. A big part of it is the tint and beam quality. Say nothing of the slick UI(s) & nice switch. I recently purchased the Zebra SC50w (warm ver) hoping it would be similar enough in tint to the LF2XTs but it ain't. 🙁 My two LFs are somewhat different in tint but both are closer to neutral than any other lights I own. I always have one of em on me. It's the best light I've found for my use and I'm on here every day a lookin'!I'm mainly attracted by the beam quality, tint, low-low, and AAA size....and all the good reviews.

I have two LF2XTs. I'd like to have a couple more. :huh: It is my favorite light and I have many. A big part of it is the tint and beam quality. Say nothing of the slick UI(s) & nice switch. I recently purchased the Zebra SC50w (warm ver) hoping it would be similar enough in tint to the LF2XTs but it ain't. 🙁 My two LFs are somewhat different in tint but both are closer to neutral than any other lights I own. I always have one of em on me. It's the best light I've found for my use and I'm on here every day a lookin'!![]()
Joining the LF2XT club with a Natural R2 w/Ti tail and blue trit installed! Woo! Can't wait to test this light out for myself. I think it will be replacing my PreonII as my EDC. Look forward to posting my first impressions once it arrives. :thumbsup:
I don't have the same range of lights as others, but single AAA lights are what really brought me to CPF in the first place, and although I have a fond spot for others as well, I think that the LF2XTi should be de riguer for all CPF'ers!kaichu, saying that this is your go-to light is a pretty good endorsement because I've seen you on the forum for quite a while now, and I'm sure you have a number of quality flashlights.
Ninemm, welcome to LF2XT-ville!Joining the LF2XT club with a Natural R2 w/Ti tail and blue trit installed! Woo! Can't wait to test this light out for myself. I think it will be replacing my PreonII as my EDC. Look forward to posting my first impressions once it arrives. :thumbsup:
You'll love it, for sure. It has replaced my preons and qminis (for now)
I have a couple CPF friends whose home property or job requirements make them very fond of high output lights where my preferences run along the lines of lower outputs with warm, comfortable beam patterns and hot spot to flood blend in a super portable packages. Hence my love for the LF2XTi, Draco's and CR2 lights as my giant lights! (Not completely true since I have a giant Ra Clicky and a couple single-cell Surefires...)
Ninemm, welcome to LF2XT-ville!
One caveat when following preferences of other members here is to try and identify which ones have the same taste in lights as you. This is so important since there are so many good choices, but the applicability can vary quite widely depending on your needs and tastes.
And for those of you that have used this light for a long time, would you change anything in the UI? So far the only improvements I have thought of are a programmable tactical mode (I use the FUI with the lowest low first but I want my tactical to be random strobe...), a tactical lock that doesn't involve clicks to disable (which would interfere with signalling, unscrewing the head and screwing back on could work as a disable method) and perhaps an integrated watch, flashing the time in the usual manner on request. 😀
One huge advantage the HDS/Ra interface has over the Liteflux is the ability to go directly from 1 mode to 3 other modes, instead of cycling through 5 different modes.
A bit off topic, but I also hope the new LF5XT is a lot smaller than the old one.

The first light I found through CPF was the L0D and it's still with me, although it now has a perfect tint and much improved beam pattern thanks to Datiled. I didn't want to get rid of my first light and now it's much more likely that I'll continue to use it from time to time. There is little to no chance that I'll ever carry it over the LF2XTi, which is probably going to be the best AAA light for sometime to come, at least for most of us. Anyone that really loves their LF2XT should really consider the titanium body available through Steve Ku. I hesitated and am glad that I eventually got one of the 2nd batch he did.This is a very good point regarding applicablility.
With much experimentation, and regarding my minimalist tendencies, my needs for a AAA-sized light for EDC and work-related requirements has been settled upon in the form of a Fenix LOD the last 2 years. At this point the only reason to change would be if I could find a very similar light type with significant improvements. (AFAIC these would be a more neutral to warm-leaning tint, somewhat better beam pattern, a much higher frequency PWM, and a more versatile user interface with the ability to go really low).
I see the LF2XT as being that light - a definite step up. And I can see being very happy with it over the next couple of years much as has been the case with my Fenix.....at least until something significantly better comes along or until my needs dramatically change.
That's one thing I like about my Ra, but one huge advantage the LF2XTi has over them is instant accessibility to ramping if you want to slightly change output. The CUI is king for me with immediate access to 3 levels of brightness and ability to also ramp and automatically save the new level.One huge advantage the HDS/Ra interface has over the Liteflux is the ability to go directly from 1 mode to 3 other modes, instead of cycling through 5 different modes.
A bit off topic, but I also hope the new LF5XT is a lot smaller than the old one.
It may be in momentary mode where if you press and hold for more than a second~ then release it will turn off. Click it 4 times and see if it stops.