Building a little flooder

BlueSwordM · 2018-05-07T11:55:44.000Z

1. Not that I know. I would have confidence in Kaidomain however. I’ve had plenty of experience buying from them, and they are legit.

2. The difference in amount between the two is small. Even if it were between 800 lumens for the 219C and 1000 lumens for the XPL, the difference is small, and not easily noticeable. But color quality is better on the 219C, so pick that one.

3. In this case, not really, not today anyway. A boost driver requires a 6V emitter, and we have a 3V LED. A buck driver needs at least 2 cells in series. Unless you want a huge light, it is a no go.
With the driver linked, efficiency will be fine, and it has a much better user interface than the standard Convoy.

Yokiamy · 2018-05-07T12:28:34.000Z

X6 triple?

garrybunk · 2018-05-07T12:53:00.000Z

How about the Astrolux S41 quad 219C (The 219B has been changed to the 219C.) Runs on 18350 or 18650 with an extension tube. . $24.49 is an absolute steal on this light! I just bought one for EDC duty and love it. You’d have to stay away from the high modes for stable output / runtime. I’m really loving the 219C’s!

-Garry

Lightbringer · 2018-05-07T15:40:22.000Z

Weird_Beard:

@Lightbringer I’m really satisfied with my S2,i just wanted something stronger. Isn’t the S2 on the “floody” side? I don’t need more flood from it,it’s fine for my needs.I want similar results with a little more output, less heat and preferably something on the same/higher CRI range. Thank you for answering!

Are we talking about the same thing?

There’s flood (wide-angle, nice blanket of light but doesn’t “reach” very far) and there’s throw (narrow spot of light, reaches quite far but close in is an annoyingly bright spot of light like looking through a keyhole).

The S2+ is semi-floody, a sort of compromise between the two. The way you initially used the term “flood”, I was under the impression you want an actual flooder, ie, a wide swath of even light for, say, lighting up the ground in front of you as you walk, looking in a dark cupboard, etc.

The TIRs I mentioned let you customise the beam, and 60° is a nice compromise for “walking” distances. (I have a 60° TIR in my headlamp).

If you just want brighter, there are other lights out there that can do that. Just specify what features you’d want.

Yokiamy · 2018-05-07T20:07:56.000Z

Well, more output and less heat do not apply with the laws of physics, especially when you want higher CRI, like with nichia’s, generally they generate more heat as cree Leds.

In that case you need more mass, the Convoy M1 or M2 might just fit your needs

Or what about kaidomain’s KDIY KF8? (Djozz made a nice review on BLF)

ValuseekeR · 2018-05-07T20:07:14.000Z

garrybunk:

How about the Astrolux S41 quad 219C (The 219B has been changed to the 219C.) Runs on 18350 or 18650 with an extension tube. . $24.49 is an absolute steal on this light! I just bought one for EDC duty and love it. You’d have to stay away from the high modes for stable output / runtime. I’m really loving the 219C’s!

-Garry

Just ordered one of these the other day, sounds like it checks a lot of the OP’s boxes.

Weird_Beard · 2018-05-07T22:38:04.000Z

Wow!A lot of things to consider and even more to read.Thank you for the suggestions!

@BlueSwordM:I wanted to ask about the reputation of Kaidomain, there are a lot of things there that caught my eye.I would really appreciate the higher CRI and those nichias seem to be perfect for a future project.I’m going to look into how hard I can drive one without catching fire.
Also I was looking for THE most efficient driver I could get because I really like bigger runtime,but I guess a decent PWM without driving it to the max would be sufficient.Am I right?

@Yokiami:I didn’t know that about higher CRI so I’ll read more about the heat management.That’s what I’m willing to sacrifice,a little bigger shell for a little more output.Would you recommend a beefy led ie a XHP50.2 driven less or something like an XPL driven harder?I’m talking runtimes and heatwise.Also I really like the K8F but I hate the fins on the lower part of the shell.Perhaps I can grind them off?

@Garrybunk:That’s a nice flashlight,I really like the copper head base and the Nichias but it’s 25 usd right now and I might have trouble with customs here in Greece.I’m definitely gonna be watching for a deal and I see me buying one in the not so distant future!

@Lightbringer:I’m sorry but I’m still trying to get familiar with those terms.What I wanted to say is I’m looking for a semi floody flashlight like the S2+ with a little more output.Ideally I’m looking for a mode between my med and high (2100 driver) in a flashlight host that doesn’t heat up as fast as my Convoy on high.Runtimes are important to me,that’s why I’m seeking a beefier flashlight but still pocketable.

Lightbringer · 2018-05-08T00:36:43.000Z

Wellp, you could try a zoomie like a SK98 (18650) or SK68 (14500) to tell the difference. Zoomed in to a Bat Signal picture of the LED, that’s all throw. Zoomed out to its widest, it’s a nice perfectly even blanket of light.

You can mod that, as most of them come with “hollow pills”, ie, just a ledge that the LED-on-MCPCB just rests on by its edges. Sucks as far as heat transfer, but you can use the Penny Trick (real Cu pennies or whatever you got there), filed flat and soldered into a stack, pushed into the pill from behind, etc., so the MCPCB would sit on that.

Or just play with it as-is, and just don’t push it too hard.

khas · 2018-05-09T05:56:16.000Z

I don’t know the size of you pockets , but here is a quick picture of some lights :

EAGLE EYE A6 EAGLE EYE X6 Convoy M2 Convoy M1 JAXMAN M8

The X6 with the LD-B4 6Amp driver and a LUXEON V 4000K is one of my most used flashlights. Great tint and all round beam profile, and with the ability to adjust the current in UI.

The JAXMAN M8 is another perhaps more pocket friendly option, it’s not available as a host though.

Weird_Beard · 2018-05-09T12:11:06.000Z

How do you find the output of the luxeon?You must be getting close to 2000lm at 6A!!!According to a review I found here I ’ll be pretty satisfied with 900lm at 2A,plus I’ve read good things about the tint,as you said.
I really like Jaxman flashlights!Is the M8 a mini c8?

Thank you for the pics!!!

Yokiamy · 2018-05-09T13:13:22.000Z

If you like Jaxman and a floody beam, why don’t you try out their E2L? they have it with Nichia as well.
I recently built a E2L triple myself, (they do sell the host) with the 4000k Nichia 219c MCPCB from jaxman with a convoy 8x7135 Biscotti driver, just because it is possible to mod it afterwards since Jaxman likes to glue up all their lights.
The tint is beautiful and the heat from the 8x driver seems to be transferred really well. (it does get quite hot after 5-10 min)

Weird_Beard · 2018-05-09T19:25:03.000Z

I like the looks of the E2L and the triple nichia option is really nice!It seems to be a Convoy shape with fins.I was wondering if the removal of aluminium to make the fins is better than leaving the walls thick so the heat is absorbed by the aluminium.
Could you provide some links for the host and the biscotti driver?I’m really interested in a similar build!

Yokiamy · 2018-05-09T19:51:24.000Z

Fins are made to create more surface area which allow more heat transfer.

https://en.m.wikipedia.org/wiki/Fin\_(extended_surface)

JAXMAN E2L hosts are available now Commercial Sellers' Spot

Dear all guys,we have begin sell the E2L flashlight last month. [image] As we had said, we have our ideas on how to build a flashlight,but BLFers need kinds of special edtions…….sigh, as a manufacture,we have no way to produce too many kinds of edtion of a product. We are facing great difficulty on stock management if there are few kinds of edtion for an E2 So I would rather to decide to sell host instead of keeping few kinds of stock. If you want an speical edtion,then you make it yourself. …

It says not available at the moment, you can always ask them (i did, they were not available at that time as well)

I bought the driver from banggood

www.banggood.com

Convoy Taschenlampentreiber Neue Firmware 7135x3 / 7135x4 / 7135x6 / 7135x8...

Nur US$9.23, kaufen Sie den besten Convoy Taschenlampentreiber Neue Firmware 7135x3 / 7135x4 / 7135x6 / 7135x8 17 mm Taschenlampenzubehör Online-Shop zum Großhandelspreis.

Or the finished jaxman
https://de.aliexpress.com/store/product/JAXMAN-E2L-3LED-TIR-LENS-flashlight-18650-flashlight-torch-CREE-XPG2-camping-cycling-outdoors/1812094_32812945810.html?spm=a2g0x.12010608.0.0.542b2437Gb8ZgQ

Weird_Beard · 2018-05-09T20:22:35.000Z

I get what the fins are doing,but only if they are added outside the tube,leaving the walls thick(like a thorfire vg15s for example). My disbelief is how efficient it would be removing material in order to have fins leaving the walls thinner.
I guess I’ll have to order the full flashlight and repurpose the shell when I get bored.I also ordered the same driver for another project but mine didn’t have the “new firmare” description,so it’ll come with the standard firmware.I’ll try to find if flashing it would be possible.
Thanks again!

khas · 2018-05-11T04:44:58.000Z

Weird_Beard:

How do you find the output of the luxeon?You must be getting close to 2000lm at 6A!!!According to a review I found here I ’ll be pretty satisfied with 900lm at 2A,plus I’ve read good things about the tint,as you said.

The output is great, I don’t know the exact lumen output but is enough

Weird_Beard:

I really like Jaxman flashlights!Is the M8 a mini c8?

Yes it’s a smaller version of the C8, the cheapest version with the XM-L2 emitter is $18 plus shipping from Aliexpress :
JAXMAN M8 flood version

Weird_Beard · 2018-05-11T12:06:56.000Z

That settles it!I’m ordering 2 V4000,one for the convoy and one for a jaxman and I’ll put the Convoy’s xml2 in a bigger host to be driven at 2.8.I like the tint of the xml2,so i’m keeping it for later.
Do you have any opinion about luxeon vs xml2 tint-wise?
Thanks man!

khas · 2018-05-11T19:08:37.000Z

I think tint is a very subjective thing, what to me looks like a nice neutral tint might seem warm or cold to somebody else.

I don’t have many flashlights with a XM-L2, but I really like the ” XM-L2 T3 7A3 3000K - 3250K CRI90 “:http://www.kaidomain.com/p/S026307.Cree-XM-L2-T3-7A3-Warm-White-3000K-3250K-CRI90-LED-Emitter from Kaidomain

pennzy · 2018-05-12T21:57:01.000Z

The Sofirn SP 32A is floody , S2 size, and more lumens. Oops, just reread your OP and I see you like tail switch.

Weird_Beard · 2018-05-13T11:39:22.000Z

@khas I started looking more a higher CRI leds,so this one is right up my alley.Thanks!

@pennzy Last week I ordered a SF36,as there are a lot of great reviews for the Sofirn flashlights.The reason I wanted a tailswitch is to be able to modify it easier in case I need to change the driver.Are side-button drivers easily interchangeable?

ValuseekeR · 2018-05-13T12:17:08.000Z

Nice! I bought several Sofirn lights recently. Overall they seem like an excellent value (especially considering the sale prices I paid and that most of them came with a battery and charger).

I also prefer high CRI when I can get it, but I like Sofirn’s NW emitter choices. The XP-L V6 in the SF36 is my favorite one. I feel the tint is just a bit nicer than the XP-L2’s in the SP31 and SP32A, but those aren’t bad by any means, they all work for me.

The SF36 surprised me. Outside of the BLF Q8 I’m generally looking for more compact EDC lights, but once I had the ’36 in hand it appealed to me all-around as a general utility light. As much as side switches and fancy UIs can be cool, there’s definitely something to be said for a simple tailswitch and modes that just work and don’t need to be explained before you hand it to someone.