Group Buy for the GearBest Ultrafire F13 - Closed?

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wight
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Old-Lumens wrote:

Tom E wrote:

Got my 2 today, after 33 days from order. One came with a 3 AA carrier – weird, the other one came with two 18650 adapters – again weird. Free extra parts I guess.


all of mine came with an extra 18650 sleeve, no holders.

My two arrived in the same envelope: one had an extra 18650 sleeve and the other had nothing IIRC. I could be wrong – I either ended up with 2 lights and 2 sleeves or 2 lights and 3 sleeves – I’m certain that I did not get short changed.

Still fine, still on a break. One day I’ll catch up with you folks! previous wight catchup Wink
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

jdunlap27284
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Mine was the same, 2 lights in one envelope with a total of three sleeves

strongest2004
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cpfdaniel wrote:
I officially hate you all that already received your F13.

Haha. I know the feeling…

It’s almost a month now and i don’t even know if my F13 had already left China. Sad

Low mode and long runtime lover…

Tom E
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Yes - I got 2 lights, 3 sleeves, 1 AAA carrier/holder.

Stock light had no thermal grease or epoxy under the star - very bad!

Ok - my stock measurements:

SONY 26650: 2.0A tail, lumens: 493 @start, 442 @30 secs (notice the big drop off - no thermal grease)

Of course I had to start modding right away... Frown Actually went pretty quick, for me that is, but I don't consider this a classic "full mod"...

Mods:

  • moved LED+ wire to before the resistors
  • 22 AWG silicone wire added inside + spring
  • 22 AWG silicone for LED wires, shortened to min length
  • XM-L2 U2 2C on 20mm Noctigon, sanded on backside, added GC Extreme under the star
  • used NO-OX-ID on driver contacts, retainer ring threads, body thread
  • Notes: left plastic centering ring as is, stock lens, no tailcap spring jumper

Results:

SONY 26650: 3.0A tail, lumens: 748 @start, 745 @30 secs -- nice tint!!

Notice how the output really held well? Nice direct thermal path MCPCB, nice thermal grease!

If jumping the battery neg. to the body, I measured 833 lumens @start, so, the tail spring has got to be wired!! Big loss's from the spring. I've seen this exact effect soooo many times...

More Mods:

  • 22 AWG silicone wire added inside tail - spring
  • sanded down top of LED alignment piece from 2.68mm to 2.56mm, took a little off the inside as well

More Results:

tail spring wire - lumens: 816 - 792 (still SONY)

alignment piece - lumens: 830 - 799 (still SONY) -- SONY is done to 4.06v, 2.93A now

Various battery tests:

Powerizer: 3.23A (4.18v), lumens: 915 - 884

KK 4200: 3.08A (4.18v)

LG HE2: 3.35A (4.21v), lumens: 915 - 881

Efest 35A: 3.30A (4.20v)

MNKE IMR 26650: 2.66A (4.20v)

 

strongest2004
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cpfdaniel wrote:
Old-Lumens wrote:

cpfdaniel wrote:
I officially hate you all that already received your F13.
HaterTongue Out

I was told by GB that all the lights had shipped. That was a couple days ago. Whatever “all the lights” means, I don’t know.

Big Smile nice one OL. It’s not that i blame GB or anyone really, I am sure they shipped but I think that a lot of online stores use freight forwarders in China and that overcomplicates the whole process. It shouldn’t take more than 15-20 calendar days from them to anyone. And I know this light is a light worth waiting for Love

Not sure if it will be better and make shipments faster, but is it better for orders from EU be shipped using European postal carriers, orders from Asia use Asian postal carriers, etc.?

Low mode and long runtime lover…

Gj
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Tom E wrote:

Yes - I got 2 lights, 3 sleeves, 1 AAA carrier/holder.


I got 3 lights, 4 sleeves, 2 AAA carrier/holders, and 1 lanyard. Tongue Out

MRsDNF
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Tom E. Are you happy with the light after your mods?

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

DanielM
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where do you guys get your Noctigons? All the mods mention them. Do you reflow leds on them or buy them with leds?

Old-Lumens wrote:
I love modding, but I don't have much use at all for flashlights in general.
Tom E
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MRsDNF wrote:

Tom E. Are you happy with the light after your mods?

Yes - tint and beam pattern is nice, brightness is pretty good, but I do hate 5 mode drivers... On this one, the "next mode" timeout is like 8 secs or so, so not bad. The other one seems to be about the same timeout. I have a Paisen light I never got around to modding - it's the same exact look/style, but has a removable pill instead, but it's driver never seems to timeout next mode memory. Been debating - got to look at 22 mm adapter options, or go with the 22 mm BLF DD driver - of course it takes like a month to get the OSHPark boards though...

For this style light, this one looks the most interesting to me: SupFire L5. It's slightly shorter, side switch, XM-L2, and being SupFire, the quality should be better, but a bit more money though.

Note: Just ordered qty 3 of the BLF22DD boards...

Tom E
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cpfdaniel wrote:
where do you guys get your Noctigons? All the mods mention them. Do you reflow leds on them or buy them with leds?

I still buy mostly from Hank at IOS, but also have bought from RMM. Hard to find good sources for bare LED's in terms of what they list is what it is, and price.

Chicken Drumstick
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cpfdaniel wrote:
where do you guys get your Noctigons? All the mods mention them. Do you reflow leds on them or buy them with leds?

I get mine from here:
http://intl-outdoor.com/led-c-107.html

And if you haven’t tried a quality NW setup you should. Any CW light thereafter will look devoid of colour Silly

Gj
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Tom E wrote:

MRsDNF wrote:

Tom E. Are you happy with the light after your mods?

Yes - tint and beam pattern is nice, brightness is pretty good, but I do hate 5 mode drivers... On this one, the "next mode" timeout is like 8 secs or so, so not bad. The other one seems to be about the same timeout. I have a Paisen light I never got around to modding - it's the same exact look/style, but has a removable pill instead, but it's driver never seems to timeout next mode memory. Been debating - got to look at 22 mm adapter options, or go with the 22 mm BLF DD driver - of course it takes like a month to get the OSHPark boards though...

For this style light, this one looks the most interesting to me: SupFire L5. It's slightly shorter, side switch, XM-L2, and being SupFire, the quality should be better, but a bit more money though.

Note: Just ordered qty 3 of the BLF22DD boards...

I have a Paisen from Wallbuys. A pencil mark resets it to high in about 1 sec. Very quick yet doesn't interfere with half-clicks to change modes, just perfect.

Tom E
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The #214 post saga continues... I replaced the stock LED centering piece with a FT butterfly style one - it fit perfect, but as I expected, the reflector was loose. So, found an o-ring that fit, added it in between the reflector and glass and that kept the reflector from rattling.

Result: nice bump in lumens, but mostly added in a newly appearing aura around the center beam, but don't think it takes anything away from the center beam - interesting effect!

Efest 35A @4.18v, 3.16A tail, lumens: 1,023 @start, 993 @30secs, throw: 27 kcd (328 meters)

DayLighter
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Don’t waste your time modding this cheap light with BLF DD driver..although it’s bright enough but better yet save the driver for other host such as HD2010 or T08, the small reflector just doesn’t give enough throw nor flood..even resistor mod L4 out throw this light with BLF DD driver :Sp

The only way to do a great work is to love what you do.

DanielM
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one month today since i ordered the goddamn flashlight and still no sight of it

Old-Lumens wrote:
I love modding, but I don't have much use at all for flashlights in general.
2 DOGS
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I got mine today (6/14/14)
Ordered 5/11/14
The body threads are pretty sloppy – loose.
Pulls about 1.9A with a 26650.
Not very bright compared with my 3.0A lights but the runtime should be pretty good.
OK for the price

strongest2004
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Mine finally arrived last Friday June 13.
Ordered May 9.
Came with an extra 18650 sleeve but no AAA adaptor.
Decent utput compared to my pnly other 26650 light – a XinTD X3.

Low mode and long runtime lover…

antiparanoico
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Mine… no tracking, no insurance.
Ordered May 18.
Shipped May 22.
Arrived June 17. Swiss Post Economy.

White box destroyed.
Lanyard. Two 18650 sleeve (one inside). No removable pill. Led without thermal interface. Next mode memory.

$9.99… Very good purchase. It will be modded…

If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.

hank
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I think they extended this discount to July hoping that by then, everyone would have gotten delivery of their first order and still be prospects to order another one.

Gj
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cpfdaniel wrote:
one month today since i ordered the goddamn flashlight and still no sight of it

 

antiparanoico
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hank wrote:
I think they extended this discount to July hoping that by then, everyone would have gotten delivery of their first order and still be prospects to order another one.
Yes… But… After a pending order be shipped…

If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.

DanielM
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Gj wrote:

cpfdaniel wrote:
one month today since i ordered the goddamn flashlight and still no sight of it

 


Old-Lumens wrote:
I love modding, but I don't have much use at all for flashlights in general.
leaftye
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Thanks.  They really should just keep this price though.  I'd keep buy more if they did.  Same with a couple of other lights.

The low mode should be lower.

Suncoaster
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Still waiting for my first two. Ordered 9 May.
Not the slowest delivery, not the fastest either..

"In the land of the blond the one eyed man is king."

*This message is protected with ROT26 encryption.Old Lumens

Gj
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Suncoaster wrote:
Still waiting for my first two. Ordered 9 May. Not the slowest delivery, not the fastest either..

You begrudge them a little walkabout? 

hank
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Works. Star just floats, only held in by the soldered wires, no thermal paste.
Star says “Cree XML-U2”
I can work with that. Wonder how long it’d run without overheating, anyone tried it in stock situation?

Anyone measured what the driver puts out? And whether it’s a constant-current driver?
I’m tempted to swap in an amber LED, if I don’t burn it up —they’re rated 500/700ma.

One battery spacer, inside the tube.
Tail cap is very loose while putting it on, feels like the threads barely engage, but it snugs up when tightened.

The shiny threaded bezel screws down onto a shoulder, the bezel doesn’t hold anything in — the lens comes out (easily, falls right out) from the reflector side of the head.
So I guess the reflector (which has a plastic spacer in the hole) presses the star against the body.

wight
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hank wrote:
Works. Star just floats, only held in by the soldered wires, no thermal paste.
Star says “Cree XML-U2”
I can work with that. Wonder how long it’d run without overheating, anyone tried it in stock situation?

Anyone measured what the driver puts out? And whether it’s a constant-current driver?
I’m tempted to swap in an amber LED, if I don’t burn it up —they’re rated 500/700ma.

One battery spacer, inside the tube.
Tail cap is very loose while putting it on, feels like the threads barely engage, but it snugs up when tightened.

The shiny threaded bezel screws down onto a shoulder, the bezel doesn’t hold anything in — the lens comes out (easily, falls right out) from the reflector side of the head.
So I guess the reflector (which has a plastic spacer in the hole) presses the star against the body.

I don’t have any experience to add about running the light stock, but why not add a dab of thermal paste? It’s ultra-inexpensive, even if you don’t have any getting a little is still a small expense. That said – 2 amps is probably not going to fry anything as long as there’s decent pressure holding the MCPCB against the shelf.

You can’t swap an amber emitter in without changing the driver! It’s a DD driver, the amber emitter’s Vf is [way] too low.

Thanks for the tip on the bezel not holding the lens in place. I hadn’t connected the dots on that.

Still fine, still on a break. One day I’ll catch up with you folks! previous wight catchup Wink
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

Tom E
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Post #214 - posted stock amps at 2.0A. Rapid drop in output I' attributing to lack of thermal grease.

DanielM
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cpfdaniel wrote:
one month today since i ordered the goddamn flashlight and still no sight of it

It arrived today, 46 days from ordering. I guess it’s ok, body could have been a little thicker. I’ve managed to nick the dome of the led but the beam looks ok to my eyes. Hate the driver, strobe+SOS? Going to change the emitter and driver pretty soon. What 26650 battery would be ok for this?

Old-Lumens wrote:
I love modding, but I don't have much use at all for flashlights in general.
processengr
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Well, mine is here, at the post office. Although I didnt request any of the delivery options, the parcel was marked signature required. 39 days from order date. Had $3 credit from GB on the Opus, only paid $7. Hope to pick it up this Saturday…

No one notices when things are going right

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