Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by
khalwat on 11-12-2010 04:39 PM GMT
EverythingIsFire said:
Man, this light is great! Glad I shelled out the extra $20 over the stylus pro(probably will buy that as a gift to someone) for the extra settings. That high setting lit the hell out of my room and did a great job in my backyard. I tend to go up n' down the stairs here at night and 1) not turning on hallway lights and 2) not tripping over stuff in the dark because of this light is fantastic. Really loving the edc use of this thing. lI'm hoping for a random black out at work :laughing:
I'm in the exact same situation. I am extremely happy with the I'm in the exact same situation. I am extremely happy with the Preon 2. I'm in the tech business, and it's fantastic for poking around servers, as well as good general purpose mini-light.
My first light from 4Sevens, color me impressed.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by solo-act on 11-16-2010 09:46 AM GMT
Thanks for the greatreview. I ordered a couple of these yesterday.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by srvctec on 11-19-2010 09:32 PM GMT
Thanks for the excellentreview as usual selfbuilt! Just ordered a Titanium Preon2 taking advantage of the black Friday sale. I'm retiring my D10 after 2 years of EDC. That's the longest I've ever EDCed one light which speaks volumes to what I think of it. Just wanting a slimmer light and one that most likely will be easier to mouth hold when working inside of copiers.
lovecpf
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by LightObsession on 11-30-2010 09:28 PM GMT
Thanks for the greatreview.
How does the original Preon 2 (lower price) compare with the Preon 2 S Edition in regards to tint and output levels? The website shows that the S Edition has a lower High, but higher Low and Medium than the original.
I'm looking to upgrade from my Energizer 2AAA and am looking for multi modes and wasn't really looking to spend this much, but these lights look interesting and appear to be similar in weight (Energizer is 39 grams with batteries). I prefer the listed output levels for the LD05, but it's much heavier.
Thanks.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by Batang Regla on 12-20-2010 07:27 AM GMT
Hi selfbuilt
I want to know your opinion about aaa lights.
What will you choose from 1st to last? Fenix ldo1ss, Preon revo ss, Itp a3, Preon 1, Preon Ti.
Also is there really an issue about stainless steel? (steel shavings?)
Thanks again selfbuilt
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by
selfbuilt on 12-20-2010 09:55 AM GMT
Batang Regla said:
What will you choose from 1st to last? Fenix ldo1ss, Preon revo ss, Itp a3, Preon 1, Preon Ti.
Also is there really an issue about stainless steel? (steel shavings?)
Sorry, I don't believe in ranking lights - just too many variables to decide. All lights have their relative merits and drawbacks, depending on the use. Personally, I like a Sorry, I don't believe in ranking lights - just too many variables to decide. All lights have their relative merits and drawbacks, depending on the use. Personally, I like a 1xAAA light that can withstand keychain carry well, and it is solid and durable (without being too heavy). I also don't like visible PWM.
My only issue with stainless steel is the fact that it is a poorer thermal conductor than titanium or aluminum. May be an issue if you run theses lights on Hi.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by Batang Regla on 12-20-2010 01:48 PM GMT
Thanks again selfbuilt.
Visible PWM?
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by
selfbuilt on 12-21-2010 10:37 AM GMT
Batang Regla said:
Pulse Width Modulation (PWM) is the common method for reducing output for Lo/Med modes in small flashlights (like most 1xAA). When the frequency is low (<120 Hz or so), it can be very distracting for those us sensitive to it (think strobe effect at a disco Pulse Width Modulation (PWM) is the common method for reducing output for Lo/Med modes in small flashlights (like most 1xAA). When the frequency is low (<120 Hz or so), it can be very distracting for those us sensitive to it (think strobe effect at a disco :green

.
200-300Hz is generally acceptable in practice, although still noticeable. You need to go >1000 Hz (1 kHz) for it not to be visually detectable (the Preons are very good >2.4 kHz). But with increasing frequency, you typically loose some efficiency. Well worth the trade-off in my opinion.
Note that some people are not bothered by low freq PWM - individual sensitivity varies.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by Batang Regla on 12-21-2010 01:23 PM GMT
Thank you very much for explaining it selfbuilt.
How would i know if a light has a high pwm? Do you have any lists of 1aaa lights that has high pwm (i think i will be collecting 1aaa lights. Easy to use, pocket friendly. )
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by
HKJ on 12-21-2010 02:27 PM GMT
Batang Regla said:
Thank you very much for explaining it selfbuilt.
How would i know if a light has a high pwm? Do you have any lists of 1aaa lights that has high pwm (i think i will be collecting 1aaa lights. Easy to use, pocket friendly. )
You have to check the You have to check the review sites for pwm, both Selfbuild and my site has measurement of it.
For collecting AAA lights my site is probably the right place to start, I have been collecting and testing then for some time.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by
selfbuilt on 12-21-2010 04:26 PM GMT
HKJ said:
You have to check the review sites for pwm, both Selfbuild and my site has measurement of it.
For collecting AAA lights my site is probably the right place to start, I have been collecting and testing then for some time.
I second that - HKJ has an extensive collection of I second that - HKJ has an extensive collection of 1xAAA lights.
I hadn't though to list PWM freq in a master list anywhere - you would have to scroll down in my individual reviews until you get to the PWM section.
Note that PWM freq can change over time, as manufacturer's revise their production methods. I know for example the newer ITP A3 lights have >1 kHz PWM (certainly improved over the older 200 Hz reported in my review). I haven't tested one directly, though.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by Batang Regla on 12-22-2010 03:14 PM GMT
Ok thank again. HKJ i will read your reviews.
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by
cana33 on 01-04-2011 04:49 PM GMT
amaretto said:
I use a 10440 Li-ion in my preon 1 (even its not recommended) and its remarkable brighter than my preon 2 with 2x AAA. With 10440 you'll get a micro pocket cannon

. I had no problems until now with the li-ion because i use my lights only short term (no longer than 1-2 minutes). Dont know if there would be any problems if you use it longer. Try it or not by your own risk.
amaretto: have you had any subsequent problems using the 10440's since your Jan 2010 post? Also, can you use it for longer than 1-2 minutes on medium w/o too much heat?
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by srfreddy on 02-12-2011 05:56 PM GMT
Oh, and the Maratacs have emmiter centering rings. Is thePreon set still sold somewhere?
Re: 4Sevens Preon Review ( 1xAAA & 2xAAA ): RUNTIMES , BEAMSHOTS , and more !
Written by EDcLED on 02-13-2011 08:20 AM GMT
Thanks to thereview I like my preon even more. I notice more than hint of green tint but I am sensitive to tint and rather green than blue. I was wondering if any out there have found that by using the spare tail O-ring that switching with one hand is a breeze, it sure did wonders for me. I don't know how water resistant that would be but I will just buy another if if falls in the bring and drowns.