Lumintop GT4

[Agro]

@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]

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]

He has a source already: Niwalker.

[Dennis_C]

@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]

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]

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

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)

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]

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]

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

[Texas_Ace]

@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]

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.

[California_Prepper]

Updates?

[JoeH12.81]

Any word on this beast?

[M4D_M4X]

not forgotten - they tune it

[California_Prepper]

@M4D M4X

not forgotten - they tune it

So what kind of numbers are we looking at?

[Texas_Ace]

@California_Prepper

@M4D M4X

not forgotten - they tune it

So what kind of numbers are we looking at?

The numbers are still in line with my earlier estimates of 20k+ lumens and a bit less then GT70 throw numbers.

That is unless they take my advice (based on SVK89’s suggestion) and try the SBT-90 in the GT4. They are worried the cost would be too high.

[California_Prepper]

@Texas_Ace

@California_Prepper

@M4D M4X

not forgotten - they tune it

So what kind of numbers are we looking at?

The numbers are still in line with my earlier estimates of 20k+ lumens and a bit less then GT70 throw numbers.

That is unless they take my advice (based on SVK89’s suggestion) and try the SBT-90 in the GT4. They are worried the cost would be too high.

Have they made a prototype using the SBT-90 to compare it with the 70.2?

Is there an estimate on what the cost would be?

[Texas_Ace]

@California_Prepper

@Texas_Ace

@California_Prepper

@M4D M4X

not forgotten - they tune it

So what kind of numbers are we looking at?

The numbers are still in line with my earlier estimates of 20k+ lumens and a bit less then GT70 throw numbers.

That is unless they take my advice (based on SVK89’s suggestion) and try the SBT-90 in the GT4. They are worried the cost would be too high.

Have they made a prototype using the SBT-90 to compare it with the 70.2?

Is there an estimate on what the cost would be?

No info yet on any part of an SBT-90 version.

[M4D_M4X]

I hope to find out about some projects wäinn2 weeks...

[mgracia85]

@Texas_Ace

@California_Prepper

@M4D M4X

not forgotten - they tune it

So what kind of numbers are we looking at?

The numbers are still in line with my earlier estimates of 20k+ lumens and a bit less then GT70 throw numbers.

That is unless they take my advice (based on SVK89’s suggestion) and try the SBT-90 in the GT4. They are worried the cost would be too high.

If you had to guess, based on your experience, what would that kind of price be? Just curious

[Texas_Ace]

@mgracia85

@Texas_Ace

@California_Prepper

@M4D M4X

not forgotten - they tune it

So what kind of numbers are we looking at?

The numbers are still in line with my earlier estimates of 20k+ lumens and a bit less then GT70 throw numbers.

That is unless they take my advice (based on SVK89’s suggestion) and try the SBT-90 in the GT4. They are worried the cost would be too high.

If you had to guess, based on your experience, what would that kind of price be? Just curious

I have no idea at this point, a lot more then the XHP70.2 version though since the LED’s themselves are an extra ~$30 each over the XHP70.2.