SureFire EB1 Backup 200 Lumen Flashlight

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Boy this is killing me. I have word from B&H that they don't expect any to come in until the 21st.
Congratulations.
Tell us your first impressions.
 
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doctordun said:
Boy this is killing me. I have word from B&H that they don't expect any to come in until the 2st.
Congratulations.
Tell us your first impressions.
Click to expand...

I've only had it a couple hours but so far I'm really impressed. It's lighter than I expected, I don't have a scale around here anywhere but it feels lighter than my E1L while still being a larger light and still retaining that "solid" we'll built feeling. This is the first light I've owned with the tactical tail cap UI and I like it so far. Can't wait to carry it around for the first couple weeks or so and see how it does with my daily tasks. Looks like the sun is starting to set so ill get some opportunity to test the throw. I also thought 5 lumens on low would be a little too low but it's not as dim on the low setting as I expected.
 
doctordun said:
Boy this is killing me. I have word from B&H that they don't expect any to come in until the 21st.
Congratulations.
Tell us your first impressions.
Click to expand...

I'm like you I hate the waiting game, maybe they'll get them instock and you'll get yours sooner. When you get it let us know what you think about it. After carrying mine over a week I really liking it. The drop in regulation don't really seem to bother me, it's a great light and will get packed for a long time. All you need to do is carry you a extra one of these.
D063.jpg
 
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Just checked Surefire website.
Can't find a E1B or EB1.
Hope it's just a web problem and not something more ominous.
 
I can reach the EB1 page but not the E1B. Can one of you that has the tactical already confirm that the tail threads match E series lights or not.
 
Viper715 said:
I can reach the EB1 page but not the E1B. Can one of you that has the tactical already confirm that the tail threads match E series lights or not.
Click to expand...
Like doctordun, I am not seeing it either. It does not seem to be accessible in the same manner as all of the other lights on Surefires website.
 
Thanks! I guess I was too lazy I've found the reviews now shoulda looked before asking I guess.
 
forgive me if this is a dumb ? but couldnt you cut the spring to shorten it for use on other E lights?
 
I want to get my grubby little hands on one and see how much longer. Wondering if the tubes long enough for a bigger battery. Also wonder if the threads of the tail are different than other E lights or if there the same and only the length is different.
 
Bullzeyebill said:
I'm interested in runtime with 2x Eneloop AA's to see how the EB1's boost circuit handle's them. Also will be good to know battery draw with different combo's.
Click to expand...

Just ran a test with 2x new Eneloops fresh off their first break-in cycle.

EB1onEneloops.jpg


The EB1 stayed pretty close to full output for over an hour before beginning to drop. I ended the test before discharging the batteries completely.

I have tried to take some current measurements but I guess the impedance of my meters causes issues with light operation. If I try testing on the mA scale (higher impedance), the light seems to work at full brightness but the meters are out of range (OL) so I can't get any readings. If I test on the full scale (lower impedance) the light puts out what looks like low output. This is the opposite of how other lights have worked when I have tested them. I have tried this with my old Fluke and a couple of cheaper meters. Unfortunately none of my clamp or fork meters will measure DC current.

I'm looking now for an affordable datalogging DC clamp meter or clamp attachment which can be used with one of my datalogging multimeters. If anyone could make some recommendations I would appreciate it!
 
Thanks for your test 880arm!

This is very interesting, I actually wondered how would EB1 head work with the E2L AA body(did you use that for the test?) and 2AA cells. And two Eneloops totally outperform one CR123! Using Energizer L91s should be even better!
 
The regulation with the Eneloops is what I was hoping and expecting from this light with the cr123.
 
tonywalker23 said:
forgive me if this is a dumb ? but couldnt you cut the spring to shorten it for use on other E lights?
Click to expand...


Viper715 said:
I want to get my grubby little hands on one and see how much longer. Wondering if the tubes long enough for a bigger battery. Also wonder if the threads of the tail are different than other E lights or if there the same and only the length is different.
Click to expand...

When looking into the EB1 tailcap the first 1/2" or so is unthreaded, unlike the other E-series tailcaps. As a result, the EB1 body is lengthened at the tail section, thus requiring the longer spring. The threads are the same but the unthreaded section of the EB1 tailcap hits the body of other E-series lights before the threads can engage. A regular E-series tailcap will thread onto the EB1 body but just barely reaches the O-ring and the spring is not long enough to reach the battery.

Maybe some photos will make more sense :D

Here you can see a comparison of the tail sections of the EB1 and an E2DL. You can clearly see that the EB1 has an extra unthreaded section between the o-ring and the wider part of the flashlight body. Also, the there are more threads on the EB1 body. I would have used an E1B for comparison but I seem to have misplaced mine :confused:

EB1_E2DL.jpg


This photo shows the E2DL tailcap installed on the EB1. The tailcap threads on just fine but bottoms out long before the spring reaches the battery. The gap between the tailcap and the wider part of the body illustrates where the extra length of the EB1 tailcap comes into play. The EB1 tailcap will "fit" the E2DL but will not engage the threads.

EB1.jpg


Finally, this photo is an attempt to show the difference inside the battery tubes. Measuring from the end of the body, the E2DL measures 11.6mm to the battery while the EB1 measures 17.7mm

EB1_E2DL_2.jpg


I measured the ID of the EB1 body at 12.86mm at its narrowest point in the tailcap section.
 
Swedpat said:
Thanks for your test 880arm!

This is very interesting, I actually wondered how would EB1 head work with the E2L AA body(did you use that for the test?) and 2AA cells. And two Eneloops totally outperform one CR123! Using Energizer L91s should be even better!
Click to expand...

You're welcome. I'm new to Eneloops (these are my first) but I am very impressed by what I have seen so far.

I don't have an E2L AA so I used a Vital Gear FB3 body instead.
 
880arm said:
Just ran a test with 2x new Eneloops fresh off their first break-in cycle.

EB1onEneloops.jpg


The EB1 stayed pretty close to full output for over an hour before beginning to drop. I ended the test before discharging the batteries completely.
Click to expand...

Yep, looks like the EB1 is engineered to run well on almost any 3 volt battery source but a CR123A. :oops:
 
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