SOLD - Red 2AA Maglite with Nichia 219 led and TIR optic - US or International, ship anywhere.

45 posts / 0 new
Last post
Slewflash
Slewflash's picture
Offline
Last seen: 4 months 1 week ago
Joined: 07/05/2012 - 08:43
Posts: 1977
Location: Australia, Melbourne

I kind of want another one or two, and maybe to give away to someone who appreciates high CRI lights, but maybe it’d be better off to left the next person to get it. But if Justin is up to making more than one then I would be happy to get another one Big Smile

From post #8, it says this: B10 Flux Bin(100-110lm@350mA, 2.7-3.1V)
And with my crude method I measured 99.7 lumens at 3.14V, 300mA. I’d say that it’s pretty accurate. This test was using 2 AA alkalines. Btw it’s worth noting that in the first 20 seconds, on alkalines the output steadily but slowly drops, about 1.5 lumens every 2 seconds. This didn’t happen with the 14500 LiIon battery.

I measured 288 lumens at 4.23V, 600mA with the 14500 battery and after running for 5 minutes indoors the head gets warm, at 35.6 degrees centigrade with ambient temperature of 21 degrees centigrade.

Slewflash 

Old Eyes need Light
Offline
Last seen: 7 years 2 months ago
Joined: 06/21/2012 - 05:26
Posts: 55
Location: Oz

Here is the link http://budgetlightforum.com/node/13570

I suspect a second edit might be overdoing sequential reading. :bigsmile:

Keep up the testing and reporting back. I might even consider joining the dark side, & linking my Debit card to PayPal Crying , if Justin is prepared to repeat the exercise.

EDIT: Also curious about NiMH Slewflash?

PS Where does the name ‘Slewflash’ come from?

Slewflash
Slewflash's picture
Offline
Last seen: 4 months 1 week ago
Joined: 07/05/2012 - 08:43
Posts: 1977
Location: Australia, Melbourne

My current NiMHs have been decommissioned due to ultra fast discharge so I’ll have to wait until my Turnigy AAs come in to do the NiMH testing.
I’ll make a new thread that consolidates all the data when I get them.
I don’t really know what else to test, except runtimes. But I’ll do those another day.

The name Slewflash comes from three different parts, slew is a mixture of my first and last name and flash comes from flashlight.

EDIT: I also don’t have any NiZn or LiFePO4 batteries, but I probably won’t be getting them any time soon so I won’t be able to test those.

Slewflash 

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 4 years 11 months ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

Thanks for the testing. I would say using one 14500 is well within the range of use for this led. That's my personal take. I think using a 14500 is for someone that just needs bright. I think using 2 Alkalines, is what most people really should do, if they just want a light for getting around with. I think NiMHs will be way too dim, as the combined output from 2 NiMHs will be 2.2v after a couple minutes of turn on. That is what I found, when trying out NiMHs.

To me, this would be a good give away light, as most people are familiar with Alkalines and they would appreciate the color rendition the Nichia gives.

I will be making more of these (I don't know how many) and while on the one hand I could "take orders", on the other hand I like to put them up for sale on different days and different times of the day/night, so that more people get a chance at one. If I take orders, I make a business out of it. If I just do them when I feel like it, then it remains a hobby. Once I loose interest, I loose it for good, usually, so I try to keep it interesting for myself, lest I quit all together (which I have been known to do,LOL).

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

Slewflash
Slewflash's picture
Offline
Last seen: 4 months 1 week ago
Joined: 07/05/2012 - 08:43
Posts: 1977
Location: Australia, Melbourne

Well don’t force it then Smile I know I’m probably going to run it on 14500s since it gives such a boost over alkalines. I can’t imagine how dim the nimhs will be. Btw the tailcap spring cuts a hole in the battery that’s touching it whenever I unscrew it or screw it. So for future builds you might want to file down the edge of the spring Smile I’ve already filed mine down so now it doesn’t affect it anymore.

Slewflash 

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 4 years 11 months ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

Slewflash wrote:
Well don't force it then Smile I know I'm probably going to run it on 14500s since it gives such a boost over alkalines. I can't imagine how dim the nimhs will be. Btw the tailcap spring cuts a hole in the battery that's touching it whenever I unscrew it or screw it. So for future builds you might want to file down the edge of the spring Smile I've already filed mine down so now it doesn't affect it anymore.
Really? The spring was that sharp? Looks like Maglite is following the rest of the world, lack of quality control, due to rising costs and using fewer people to do more work. Sad.....

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

Slewflash
Slewflash's picture
Offline
Last seen: 4 months 1 week ago
Joined: 07/05/2012 - 08:43
Posts: 1977
Location: Australia, Melbourne

Yep it was that sharp. Also if anyone is curious i ran it for 15 minutes on a 14500 with no damage done Smile Ill do a runtimes test tomorrow

Slewflash 

Old Eyes need Light
Offline
Last seen: 7 years 2 months ago
Joined: 06/21/2012 - 05:26
Posts: 55
Location: Oz
Slewflash wrote:
Yep it was that sharp. Also if anyone is curious i ran it for 15 minutes on a 14500 with no damage done Smile Ill do a runtimes test tomorrow

Were the spring to pierce the 14500, lumens might go off the scale.

I have a AA Sipik 68 that also scratches the base of the battery. As it is the only one I have that always starts on High, rather than their perpetual cycle, I used a nail file to smooth out the cut end. A second pair of fine needle nosed pliers might have enabled me to bend the end of the spring down & inward.

It is pleasing to hear that Justin may make further versions. However creative juices need a challenge – even Leonardo had difficulties in completing some works.

I wonder what effect this type of lens has in converting LED lumens to OTF?

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 4 years 11 months ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

Old Eyes need Light wrote:
I wonder what effect this type of lens has in converting LED lumens to OTF?
I don't know, but the lenses (most of them), run about 80%-87% efficient, so there is definitely loss there.

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

Slewflash
Slewflash's picture
Offline
Last seen: 4 months 1 week ago
Joined: 07/05/2012 - 08:43
Posts: 1977
Location: Australia, Melbourne

Why would lumens increase if the tailcap pierces the 14500 cell?

Slewflash 

Old-Lumens
Old-Lumens's picture
Offline
Last seen: 4 years 11 months ago
Joined: 11/04/2011 - 11:39
Posts: 7478
Location: Tyler, TX, USA

Slewflash wrote:
Why would lumens increase if the tailcap pierces the 14500 cell?

POOFTongue Out

My PayPal address: oldlumens (insert the @ sign here) gmail.com

My YouTube Flashlight Video Channel

The BLF Modding Links Thread 

http://imageshack.com/a/img922/1374/jQ2wdL.jpg

 

scaru
scaru's picture
Offline
Last seen: 4 years 11 months ago
Joined: 03/22/2012 - 13:36
Posts: 6946
Location: Virginia

Old-Lumens wrote:

Slewflash wrote:
Why would lumens increase if the tailcap pierces the 14500 cell?

POOFTongue Out

Yeah, the explosion would atleast double the output. Silly I think what he meant was that due to the added pressure and the spring being more compressed more current will pass through. 

Slewflash
Slewflash's picture
Offline
Last seen: 4 months 1 week ago
Joined: 07/05/2012 - 08:43
Posts: 1977
Location: Australia, Melbourne

I just filed off the point, doesnt make a difference in brightness though

Slewflash 

GottaZoom
GottaZoom's picture
Offline
Last seen: 3 years 3 months ago
Joined: 04/12/2012 - 03:14
Posts: 2179

I just looked at my fairly old minimag and it has done the same to one of my TFFs (both now moved to separate SK68s). Apparently not a new maglite QC problem – perhaps softer material on the TFFs?

Pages