Manker E02 L shaped AAA 220 Lumens magnet tailcap multifunction flashlight is releasing

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sbslider
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I got my unit finally yesterday. I like that the modes move up and down linearly instead of jumping back to the beginning. L-M-H-M-L-M- . .

Have not gotten to spend much time with it yet but I do have one interesting (to me) observation. In the little testing I have done I see that when you turn the unit off (at least in M mode). and turn it back on awhile later with a long click it comes back on in medium mode, but the next mode is always high. It does not remember if you were decreasing the intensity or increasing the intensity. After reflecting on this, I like that approach. L is always accessible with a short click. So if you are not looking for L with a long click, you probably don’t want to go from M to L with the next click.

I also like the fact that I can tailor the L output level. Some of the lower levels are very close together, They could have reduced the number of levels for sure, but whatever. Now that it is set where I want it, I don’t see changing that level, unless I just want to play with the light.

All in all it is exactly what I expected based on the reviews on here. Good light, good price, really slow shipping . . . .

Ozythemandias
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Any word if there will be headstraps available?

sbslider
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hmm, I also notice if you turn the light off in moonlight mode, and then long click to turn on, it goes to level you turned it off previously that was not moonlight mode.

jon_slider
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sbslider wrote:
I got my unit finally yesterday. I like that the modes move up and down linearly instead of jumping back to the beginning. L-M-H-M-L-M- . .

Im a little confused about what you call Low and Medium.. do you mean what Manker calls Moonlight and Low?

Moonlight 0.6lumens 84hrs
Low 16lumens 10hrs
High 70lumens 2hrs
Turbo 220-70lumens 3min-1.8hrs
Strobe 220lumens

sbslider wrote:
hmm, I also notice if you turn the light off in moonlight mode, and then long click to turn on, it goes to level you turned it off previously that was not moonlight mode.

so, are you saying there is no mode memory for moonlight? (it is always first from off with a short click anyway, correct?)
that would mean short click for moonlight, and long click for last mode used.. sounds useful Smile

congrats on your cute little light… did you get the Nichia version?

I will be curious how you like living with the magnet. I like the magnet feature a lot, except on keyring lights.

sbslider
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jon_slider wrote:

Im a little confused about what you call Low and Medium.. do you mean what Manker calls Moonlight and Low?

Moonlight 0.6lumens 84hrs
Low 16lumens 10hrs
High 70lumens 2hrs
Turbo 220-70lumens 3min-1.8hrs
Strobe 220lumens

Yes, technically the mode order is moonlight – low – high – low – moonlight – low . . .

sbslider wrote:
hmm, I also notice if you turn the light off in moonlight mode, and then long click to turn on, it goes to level you turned it off previously that was not moonlight mode.
jon_slider wrote:
so, are you saying there is no mode memory for moonlight? (it is always first from off with a short click anyway, correct?)

Yes, that is correct. Moonlight can always be accessed with a short click. but it can never be accessed with a long click, even if it was the last mode when you turned the light off. If moonlight is the last mode when turned off, it appears the firmware remembers the last mode when it was turned off when the mode was either low or high.

example:
Turn it off in medium mode. Turn it on in moonlight with short click, and turn it off. repeat 5x. Then turn on with long click, comes on in medium mode.

Same if you started the process in high mode.

jon_slider wrote:
congrats on your cute little light… did you get the Nichia version?
Yes.

I like it a lot, so for the past couple days I have been carrying both the E02 and my Maratac AAA.

djozz
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I had one in red and liked it a lot, but had to give it away. I ordered a new one, this light is really nice. Smile

saypat
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Mankerlight wrote:

Manker E02 get available on US Amazon: https://www.amazon.com/dp/B0719RVPPB

I had been doing a search on Amazon all the time for this light. I tried ‘Manker’ and ‘Manker EO2’ and nothing showed up, still doesn’t. And yet here it is???? I ended up ordering from HKEquipment but would rather have ordered on Amazon as I had reward points. Oh well.

Jerommel
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Ordered mine from ‘manker gear” shop on ebay.
It’s a lovely little light.

Looking for:

5” parabolic reflector (for recoil light)

Hawaiian Eyez
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saypat wrote:
Mankerlight wrote:

Manker E02 get available on US Amazon: https://www.amazon.com/dp/B0719RVPPB

I had been doing a search on Amazon all the time for this light. I tried ‘Manker’ and ‘Manker EO2’ and nothing showed up, still doesn’t. And yet here it is???? I ended up ordering from HKEquipment but would rather have ordered on Amazon as I had reward points. Oh well.

Yes, it’s weird that it won’t show up by name. Search for “angle flashlight” and it will show up… 20 bucks on Amazon

sbslider
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Jerommel wrote:
Ordered mine from ‘manker gear” shop on ebay.
It’s a lovely little light.

same here, but mine took quite some time to arrive. Also would have used amazon if it had been available when I ordered.
tantrik77
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Is there a code anywhere for these?

Also, does anyone know when the AA version will be available?

sbslider
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saypat knows the code for HKequipment likely, I saw somewhere he got 8% off. I found it also, but did not end up buying a second. I think you can find it on M4DM4X’s blog also.

sbslider
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So I finally got to do some testing with a DC power supply driving the light instead of a battery. I learned a few things. It appears that the light has a built in throttle back in turbo mode when the current into the light gets to about 2A. It drops down by about half at this point to 1.1A or so. I don’t have a light meter, and even if I did I would not be able to measure the light output, as I am holding leads on the driver board and trying to click the e-switch. Testing a twisty is much easier . . . Just to elaborate at bit the current from the AAA cell when in normal operation varies from 1.4A at 1.5V input to the driver, to 1.9A for 1.15V input to the driver. Good thing it lasts only 3 minutes.

Also noted that the light works down to somewhere between 0.75 and 0.7 V at the input to the driver. I judged this based on not being able to get moonlight mode out at 0.7V input to the driver, but getting data for High and Low modes with 0.75 V input. So if you perform a run test with an eneloop, especially in high mode, you may damage the battery. For 0.75V input, the light is demanding 0.82A from that little AAA cell. I don’t know a ton about nimh, but I have read you should not run them much below a volt. I suspect it would not be happy long term delivering 1C at a voltage below its normal range. I do plan to run some duration testing sometime soon, but will likely guestimate how long I think it will last based on the measurements I made today and see where the battery is at that point.

I did not take data in moonlight mode, as it is very adjustable, and the currents are so low that it did not seem worth the effort. I was seeing current between 0.007 and 0.015A. YMMV

sbslider
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Performed a leakage current check today.
With a brand new alkaline, 1.625V, leakage is 17.4uA.
with a fully charged eneloop sitting for ome time, 1.38V, leakage is 11uA
With a somewhat charged eneloop, 1.27V, leakage is 8.9uA

A bit non linear for sure, but would not be surprised if my current meter contributes to this.

Using 12uA, one would loose roughly 100mAhr in a year. Not to shabby, but if you are going to leave one in storage just loosen the tail cap a bit and leakage is 0.

jon_slider
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sbslider wrote:
how many red lights do you have?

LOL, Just one Smile

< begin Constant Current Circuit Noise Rant >
the E02, like the Lad, uses constant current, however, there is a current monitoring feedback loop that creates another type of fluctuation, that selfbuilt calls circuit noise. It can be detected in photos, but is very hard to detect by waving the light.

Here is the LAD dragons breath (constant current circuit noise):

LAD constant circuit noise:

Lad on Left, no PWM detected, Tube on right, yesPWM:

Tip, no PWM detected, this is constant current circuit noise:

this is an example of constant current circuit noise, a fluctuating current feedback loop, on a scope:

zebralights are also constant current w circuit noise:

also EagleTac:

Control Shot, Constant Current with NoPWM and No Circuit Noise:


< /end notPWM rant>
sbslider
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Not sure of all of the variables in the pictures above, as I don’t know what equipment was being used. I do know the picture of the oscope looks to be set at 0.002/division. If the gain of his setup is 1A/V, that would be 0.002A/div, or 2mA. Commentary here is my experience is the gain of most current probes is lower than 1A/V, but we will just leave that number for now.

Absolute worst case above is 2 divisions, or maybe 4mA. I have measured the current of all my lights. Ignoring moonlight mode, low mode for my E02 is 0.1 to 0.15A DC current. The current in the waveform above is a variation on top of the DC value (DC is “direct current”). So a 4mA, or 0.004, variation on 0.1 is 4%. Just referencing numbers above, the actual variation is likely smaller,perhaps much smaller.

4%, 2%, <1%, These numbers are too small for me to detect, but I am not super sensitive to PWM. I have actually not used a light yet (that I know of) that uses PWM. YMMV.

sbslider
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Tested my E02 with an AC/Delco AAA alkaline. Based on testing with a DC power supply, I expected the light to go from on at full intensity to off. That turned out to not be the case. At 9:20 I thought the light intensity had dropped, so I check. It had dropped by roughly 1/2 based on my E01 for reference and my uncalibrated eyes. At 10 hours it was down to moonlight mode of my E01, so I turned it off. Lots of family here now, so I will follow up on more testing later. Was pleased to get over 9 hours of very usable light in low mode though.

To the fathers out there, Happy Father’s Day!

sbslider
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Hey Jon Slider, I would be curious to know what percentage of the noise is causing the varaitions in the videos above. My example above was for higher currents than are likely being shown in the videos above. Those look much more like a moonlight mode, except maybe the eagletac, as that is not looking directly at the emitter. 4mA on a 8mA moonlight mode current is a much bigger variation, more like 50%.

jon_slider
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sent you PM so as not to hijack
Happy Fathers Day!

sbslider
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jon_slider and I discussed the likely differences between the LAD driver and E02. Below are pictures close ups of the light and a short video showing that it does not exhibit the noise lines shown in the LAD.

Mkduffer
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saypat wrote:
Mankerlight wrote:

Manker E02 get available on US Amazon: https://www.amazon.com/dp/B0719RVPPB

I had been doing a search on Amazon all the time for this light. I tried ‘Manker’ and ‘Manker EO2’ and nothing showed up, still doesn’t. And yet here it is???? I ended up ordering from HKEquipment but would rather have ordered on Amazon as I had reward points. Oh well.

Water under the bridge, but your text is “EO2” where the correct model is E02 (E Zero Two).

People say I’m a flashaholic like it’s a bad thing…

saypat
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amazing! I stand corrected. Every year older brings more mistakes. Appreciate the correction.

Sprinkles
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Based on my conversation with Manker, they said they have plans to make a AA/14500 and a 18650 version. Apparently they’re in the works now, but they do not have an expected release date.

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