Lumintop GT4

Agro · 2019-08-19T13:23:32.000Z

It might be interesting to try Osram S2WP as well…

SKV89 · 2019-08-19T15:43:44.000Z

Texas_Ace:

No meaningful updates at this point.

I have a prototype here that is almost ready to send to VOB for review but they want the production to be closer to ready before that.

They have figured out an optional handle that is pretty nice and allows for much easier handling of this beast.

I also might be experimenting with some SBT-90 LED’s in a GT4 before long (most likely after the review since it needs to be reviewed with the stock XHP70.2’s).

If the SBT-90 works out, maybe you can provide modding service like you did with the MT09R. People can have the GT4 shipped to you directly and you can mod for them.

California_Prepper · 2019-08-19T15:56:20.000Z

What’s the big difference between the 70.2 and the sbt-90 leds?

Texas_Ace · 2019-08-19T17:51:47.000Z

Agro:

It might be interesting to try Osram S2WP as well…

Never heard of it. Is it the RGBW LED?

Not sure if there would be a need for it in this light but could be modded to fit I am sure.

Texas_Ace · 2019-08-19T17:52:18.000Z

SKV89:

Texas_Ace:

No meaningful updates at this point.

I have a prototype here that is almost ready to send to VOB for review but they want the production to be closer to ready before that.

They have figured out an optional handle that is pretty nice and allows for much easier handling of this beast.

I also might be experimenting with some SBT-90 LED’s in a GT4 before long (most likely after the review since it needs to be reviewed with the stock XHP70.2’s).

If the SBT-90 works out, maybe you can provide modding service like you did with the MT09R. People can have the GT4 shipped to you directly and you can mod for them.

Yes, if it works out then that is something I could possibly do.

Got to see results first though.

Texas_Ace · 2019-08-19T17:53:28.000Z

California_Prepper:

What’s the big difference between the 70.2 and the sbt-90 leds?

The XHP70.2 will have higher lumens and efficacy but will also be more floody and have some tint shift.

The SBT-90 should have higher lux / throw at the cost of some lumens. It only comes in CW though.

California_Prepper · 2019-08-19T18:16:33.000Z

Sbt-90 leds are also more significantly more expensive aren’t they? A gt4 with sbt-90s is something myself and probably many others would be interested in.

Agro · 2019-08-19T18:16:41.000Z

Texas_Ace:

Agro:

It might be interesting to try Osram S2WP as well…

Never heard of it. Is it the RGBW LED?

Not sure if there would be a need for it in this light but could be modded to fit I am sure.

No, LE UW S2WP is a white one.
It consists of 4 2mm² White Flat dies or 4 2mm² Q8WP ones. I’m not sure which. I’m not sure if these dies are even different, I’ve seen some hints that no as well as that yes.

Anyway, it should throw quite nice while providing easily 5000 lm/LED and hopefully double the candela of XHP70.2.
In a quad it would be interesting to have custom asymmetric centring gaskets, ones that focus the reflector on just 1 LED.
This would avoid a hole in the beam but throw the rest of light somewhat off as a secondary beam. A quad could make this secondary beam symmetric.

Nightwatch is about to release a light with S2WP

Texas_Ace · 2019-08-19T19:11:47.000Z

California_Prepper:

Sbt-90 leds are also more significantly more expensive aren’t they? A gt4 with sbt-90s is something myself and probably many others would be interested in.

Yes, they are almost 10x the price of the xhp70.2.

Texas_Ace · 2019-08-19T19:13:40.000Z

Agro:

Texas_Ace:

Agro:

It might be interesting to try Osram S2WP as well…

Never heard of it. Is it the RGBW LED?

Not sure if there would be a need for it in this light but could be modded to fit I am sure.

No, LE UW S2WP is a white one.
It consists of 4 2mm² White Flat dies or 4 2mm² Q8WP ones. I’m not sure which. I’m not sure if these dies are even different, I’ve seen some hints that no as well as that yes.

Anyway, it should throw quite nice while providing easily 5000 lm/LED and hopefully double the candela of XHP70.2.
In a quad it would be interesting to have custom asymmetric centring gaskets, ones that focus the reflector on just 1 LED.
This would avoid a hole in the beam but throw the rest of light somewhat off as a secondary beam. A quad could make this secondary beam symmetric.

Nightwatch is about to release a light with S2WP

Oh, ok that makes more sense.

That is an interesting LED. I wish they came in good tints but still quite interesting. Anyone know where to get them?

Agro · 2019-08-19T19:41:37.000Z

Texas_Ace:

Agro:

Texas_Ace:

Agro:

It might be interesting to try Osram S2WP as well…

Never heard of it. Is it the RGBW LED?

Not sure if there would be a need for it in this light but could be modded to fit I am sure.

No, LE UW S2WP is a white one.
It consists of 4 2mm² White Flat dies or 4 2mm² Q8WP ones. I’m not sure which. I’m not sure if these dies are even different, I’ve seen some hints that no as well as that yes.

Anyway, it should throw quite nice while providing easily 5000 lm/LED and hopefully double the candela of XHP70.2.
In a quad it would be interesting to have custom asymmetric centring gaskets, ones that focus the reflector on just 1 LED.
This would avoid a hole in the beam but throw the rest of light somewhat off as a secondary beam. A quad could make this secondary beam symmetric.

Nightwatch is about to release a light with S2WP

Oh, ok that makes more sense.

That is an interesting LED. I wish they came in good tints but still quite interesting. Anyone know where to get them?

Normally: no.
You want test samples? Maybe Neal could get you some?…

Texas_Ace · 2019-08-19T19:47:06.000Z

Yeah, I was planning on asking Neal about them, it is just generally easier when I can show him a source to start his search with lol.

Agro · 2019-08-19T20:27:23.000Z

He has a source already: Niwalker.

Dennis_C · 2019-09-01T06:28:47.000Z

Texas_Ace:

California_Prepper:

What’s the big difference between the 70.2 and the sbt-90 leds?

The XHP70.2 will have higher lumens and efficacy but will also be more floody and have some tint shift.

The SBT-90 should have higher lux / throw at the cost of some lumens. It only comes in CW though.

I think shaved dome 70.2’s would be interesting. Less tint shift, and a small reduction in lumens with a small boost in lux/throw. Less so than the SBT-90, but a lot cheaper and no driver mods required.

Texas_Ace · 2019-09-01T14:09:47.000Z

Put simply I don’t trust them to shave the domes from the factory so I don’t recommend that.

If they chose to do it themselves then that is great since any issues would be their own fault and I could not be blamed.

SKV89 · 2019-09-01T16:58:50.000Z

Instead of shaving the XHP70.2, maybe look into these two new emitters that comes domeless. Tint looks good from pics.

[Alibaba Adventure] GT-FC40: XHP35 HI's Bigger Sister, with 90+ CRI Flashlight Modding and DIY Parts

After my unsuccessful attempt in finding a high CRI 5mm LEDs for Djozz's C01, I continued my search. Now, I've found what appears to be a bigger version of XHP35 HI. [image] Here's the FC40. The Die size is equal to the XHP70, but the LES is 5*5mm. The LED is rated at 40W, and produces 3000-3200lm at 90+ CRI and CCT range of 5000k-5500k. (Note. I told them to make a 95 CRI sample for me, this one may actually be 95 CRI, assuming that the company messed up the label. I'm currently reaching out …

Nightwatch NI40 with Osram S2WP - now arrived- coupon: NDF (8% off) LED Flashlights – General Info

Anyone have a datasheet on the S2WP. I just got Nightwatch sample from Neal with it, but can’t find anything about it. Love the consistency of the tint though. No rainbows here. Found it: https://dammedia.osram.info/media/resource/hires/osram-dam-7378054/LE%20UW%20S2WP_EN.pdf

The Osram S2WP throws farther than a dedomed XHP50.2 and makes 4500 lumens according to Nealsgadget description

Texas_Ace · 2019-09-01T17:16:40.000Z

That new LED is quite interesting, I was hoping to see something like that from Cree with those new tiny dies they came out with. I will be interested to see what djozz testing shows.

The S2WP is another interesting LED, I asked them about using it but have not heard back.

Wieselflinkpro · 2019-09-02T18:15:48.000Z

They seems to be on the colder end of the color range. I would like to see something between 4000K and 5000K

Texas_Ace · 2019-09-02T18:24:07.000Z

Wieselflinkpro:

They seems to be on the colder end of the color range. I would like to see something between 4000K and 5000K

That is the other issue with all of these LED options.

SKV89 · 2019-09-02T20:33:23.000Z

According to this post, the GT-FC40 95CRI goes down to 2600K. You just need to order in large enough quantities but it seems like that should be easy for a company like Lumintop. According to this post, seems like they are willing to do samples.