My new 2-stage Wee NS

[919jack]

On high: 25 lumens (or 80 if I put in the other LE)

On low: a fraction of a lumen?

When my Wee has been off for a few minutes the LED begins to glow VERY dimly, about the brightness of the trits on the side...this continues until I twist the light in any direction, then it goes back to no light.

I wouldn't care about this, but part of me wonders if I would find a dead battery after a week of no use. (I am too fond of using the Wee to make it through this week-long runtime test on a fresh battery) Any thoughts? Anyone else experience this with Lummi or other lights?

 

[djsportland]

Mine does the same thing I have just started to make sure I do a full turn past off.

 

[Patriot]

That's strange. I don't have that issue with the Ns or Raw.

I full one turn past off makes me think that would get annoying after a while. Maybe Rob will chime in with some ideas..

 

[orb]

:wave: Guys..
I have observed this unusual faint glow from the LED in the Wee Ns/Ti Only when just of.

My explanation is the tiny Black O ring inside the NS/Ti end cap (The component with the H3) Has a moisture content & allows enough current to flow through the O ring (Switch) to Light the LED Just. I doubt you could really even measure the current flow & it would take months to discharge the battery.
You could say it was an added find in the dark feature like the H3 Locators :thumbsup:
Or you may not like the idea? It seems that when the O rings are fresh out of the bag (New) the effect is more noticeable. In time I think the O ring will dry out & the effect will disappear. & another option is just to back of enough (Not a full turn) to remove the contact of the O ring from the negative side of the battery.
It is definitely the O ring that causes this. Send me a email if it is a problem for anybody.
:thanks:
Rob

 

[daemondust]

These LEDs take a ridiculously small amount of current to start to glow. While building a mood lamp with red, green, and blue Luxeon K2's I was able to get a glow out of them if I connected the cathode of the LED to the power supply, held the other lead and touched the anode of the LED. It wasn't much, but as you said, on par with a tritium locater. That's on the order of hundreds of nanoamps. A quick and dirty calculation (90 milliamp hours / 200 nanoamps) gives 50 years of runtime at that current, so I wouldn't worry about it draining the battery.

 

[919jack]

Thanks for the informative replies. I have found that I can get the same current with the Wee's tailcap removed and my finger on the back of the battery. Must not be much )

 

[EngrPaul]

Still happening... new Wee for me one year later .

 

[MKLight]

I had missed this post. EngrPaul, thanks for bumping this. It makes me more content this is normal.

Thanks,
Mike

 

[EngrPaul]

My guess is these o-rings aren't guaranteed to be good insulators, regardless of water content. Silicone might be better.

I wonder if anyone's done a runtime in low? It might be the champion!

 

[EngrPaul]

FYI, I just ordered some silicone switch o-rings.

http://www.mcmaster.com/#5233T12

I'll see if they have better insulating properties.

 

[grimes1965]

EngrPaul,
I'll be very interested in your results with the new o-rings.
My Wee has the same glitch but it seems to occur with very random frequency.
Steve

 

[EngrPaul]

I received the silicone o-rings today. They work great! The emitter doesn't glow at all. I'll let the trits do that.

If anyone within reach of USA first class mail is interested in some, PM me.

$0.30 each o-ring
PLUS
$1.00 for first class postage and Paypal fees

 

[grimes1965]

PM sent.
Thanks.
Steve