[PART 1] Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

[Slayer1]

469 - Slayer1, 8pcs 35E is paid for but not updated in the paid/shipping list for the first 555.

[giorgoskok]

Will lumintop produce 12V xhp70 mcpcb for the GT ?

[JasonWW]

@Slayer1

469 - Slayer1, 8pcs 35E is paid for but not updated in the paid/shipping list for the first 555.

I see you paid, but it doesn’t look like Neal marked you down for the batteries. You might send him a PM about it. Keep in mind Neal sent this list on the 8th so it’s out of date.

[Suxelebut]

Please add me to the list

[JasonWW]

@Suxelebut

Please add me to the list

Coyotewolf will add you to his list when he does the next update. It should be early January when you get a notice with all the details on how to pay for it.

As the Miller would say, welcome to BLF.

[Nicolicous]

@giorgoskok

Will lumintop produce 12V xhp70 mcpcb for the GT ?

I’m with u.

Wanting second light with XHP70.

[JasonWW]

@giorgoskok

Will lumintop produce 12V xhp70 mcpcb for the GT ?

Still unknown. TA was looking into it. It may be a while before Lumintop decides. Maybe TA can say more tomorrow.

[gtxxl]

@Texas_Ace

Ok, so today I stole a few minutes to install the XHP70.2 80CRI 4000k in the V2 prototype. HM440H model for anyone interested.

I LOVE THIS LED!

This LED looks SO much better then the 4000k 70CRI that was in it before. It is a lower bin and it lost some output but not as much as I would have thought. Still easily as bright as an XHP70 except without as much of a dark spot and with 80cri.

I tried a few different sized centering rings. Throw readings showed a peak of ~440kcd (vs ~450kcd for the 70cri) with a 2mm centering ring.

Although I am going to print up a new centering ring that is ~4mm tall since manual focusing shows that around there throw only drops to ~430kcd yet the dark spot virtually disappears. WELL worth the trade off.

So what do I end up with?

A ~6000 lumen (possibly more since the throw readings are so close to the 70CRI @ 7000 lumens) 80CRI 4000k 1300m+ throw GT with corona tint shift hardly worse then the stock XHP35.

This light will be keeping this setup for sure, it is fantastic! I would never have guessed that the 80cri version would have this kind of improvement in the tint shift issues. I still don’t know why but it has very little tint shift (not perfect but only slightly worse then the XHP35 that comes stock once focused).

I expect that slicing the dome would have similar results to the 70CRI version with ~1600m+ of throw but I am not willing to risk another $10 LED to find out right now, maybe if I get board or feel lucky later.

Or if someone wants to donate an LED to the cause I can put it on the sphere to test the output and try slicing the dome to see those results as well.

Did I really understand that, with the XHP70.2 LED the Spot is good and no black hole is present ?
If that’s true then this LED should go into the Big Lamp.

[NikolaS]

Did I really understand that, with the XHP70 LED the Spot is good and no black hole is present ?
If that’s true then this LED should go into the Big Lamp.

XHP70.2 won’t have a whole, but first edition XHP70 will,unless dome is sliced…

[Enderman]

@gtxxl

Did I really understand that, with the XHP70 LED the Spot is good and no black hole is present ?
If that’s true then this LED should go into the Big Lamp.

XHP70.2, not XHP70.
If you want that LED in the light then you will have to mod it yourself because the group buy is only with the XHP35.

[JasonWW]

@NikolaS

Did I really understand that, with the XHP70 LED the Spot is good and no black hole is present ?
If that’s true then this LED should go into the Big Lamp.

XHP70.2 won’t have a hole, but first edition XHP70 will, unless dome is sliced…

Dome makes no difference on xhp70, it still has noticeable hole. Maybe MORE noticeable with the dome sliced. I have pics if you want.

The 70.2 does have a darker center, but it’s not very noticeable. It’s much better and smoother than the 70.

[Wieselflinkpro]

After all lights were produced and shipped, a pill-section with driver and XHP70.2 and a short tube would be great, if it is aviable for buying.
With this it would be relative easy to swap between the two emitters.

[Rat]

@yclongthrow

Take Rat off the list

Nooooooooooo, it was only a joke.

@tatasal

You guys smelling a rat?

You, sir, have a good nose.

This post needed a bit of fun. The tension was getting a little too much.

[NikolaS]

After slicing the dome on XHP70, I’ve used 1000 grit sandpaper to smooth and mat the surface,and clean up after with isopropyl alcohol.
Tint shift is minor from 6500K to 5700K.
Results are great, similar to HI emitter but loss of lumens are bigger then I thought.
Lumintop SD75 running at 6 Amp gives only 3600 OTF lumens, so almost 20% less, but the hotspot and the beam are perfect !

[tatasal]

@Rat

@yclongthrow

Take Rat off the list

Nooooooooooo, it was only a joke.

@tatasal

You guys smelling a rat?

You, sir, have a good nose.

This post needed a bit of fun. The tension was getting a little too much.

[gtxxl]

@JasonWW

@NikolaS

Did I really understand that, with the XHP70 LED the Spot is good and no black hole is present ?
If that’s true then this LED should go into the Big Lamp.

XHP70.2 won’t have a hole, but first edition XHP70 will, unless dome is sliced…

Dome makes no difference on xhp70, it still has noticeable hole. Maybe MORE noticeable with the dome sliced. I have pics if you want.

The 70.2 does have a darker center, but it’s not very noticeable. It’s much better and smoother than the 70.

I would be very happy if you take pictures. :+1:

[JasonWW]

@gtxxl

@JasonWW

@NikolaS

Did I really understand that, with the XHP70 LED the Spot is good and no black hole is present ?
If that’s true then this LED should go into the Big Lamp.

XHP70.2 won’t have a hole, but first edition XHP70 will, unless dome is sliced…

Dome makes no difference on xhp70, it still has noticeable hole. Maybe MORE noticeable with the dome sliced. I have pics if you want.

The 70.2 does have a darker center, but it’s not very noticeable. It’s much better and smoother than the 70.

I would be very happy if you take pictures. :+1:

Convoy L6 with SMO reflector and xhp70.

It’s a little hard to see at full brightness. Here is the dome on shot at a lower exposure.

.

[NikolaS]

But with OP reflector, there will be no hole. Also L6 is not originally designed with smooth reflector,so with stock one the beam would be much better

[JasonWW]

@NikolaS

But with OP reflector, there will be no hole. Also L6 is not originally designed with smooth reflector,so with stock one the beam would be much better

The GT uses SMO. This is what we are talking about.

[NikolaS]

@JasonWW

@NikolaS

But with OP reflector, there will be no hole. Also L6 is not originally designed with smooth reflector,so with stock one the beam would be much better

The GT uses SMO. This is what we are talking about.

Yeah that’s why only option is XHP70.2 :+1: