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

Thanks nodoubt ,as much as 4000K look good on your outside beamshots, I really doubt that I will keep it.
So far best solution for me, like Kawi did with his, a dedomed XHP35HD.

How hard is dedoming on 35HD E4 1A,and what’s the best method?

BOOOOOO——— :smiley: :wink: ———- I hope they fair better than our Tigers

Niteye EYE30/40 had this! 25$(+ shipping)<-click the pic…!

A little on the steep side for what it is, but looks like a good option

I think that would be cumbersome, given the size of the GT.

Search Google for "Universal Grab Handle"

Ideally the handle should be made of plastic. As was previously written, holding aluminum in the winter rapidly cures one of the urge.

UPDATES: It appears that the first shipment went out by region instead of the exact order in which we paid for cost reasons. Initial quality has been fantastic.

The first shipment of lights (168 total) shipped on Dec 23. This was a pallet going to the USA from the first 576th person on the paid list that did not include batteries. Tracking numbers went out on Dec 27 and lights started arriving to customers on Dec 29th. DHL shipping was very fast.

There should be a European order going out in January.

The next group to purchase lights (#1000 and up on the list) will get their emails mid January instead of early January in order to let Neal get caught up with current orders.


BLF GT official support thread


Nvanlaar’s links.

The Millers Original Group Buy List ending on Nov 11 and #1213

Coyotehawk’s Continuation of the Group Buy List, starting Nov 11 and #1214 - Updated Dec 27

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Neal’s Paid/Shipping List for first 555 - Updated Dec 15

Neal’s Paid/Shipping List for #556 to #1038 - Updated Dec 10 or 12.

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M4D M4X: For all people who want to let us know the value that should be declared on the parcels:
please take the BLF GT customs declaration survey.

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M4D M4X: You can buy 8 of the button top Samsung 35E batteries (seem ideal, high mAh and good amps) for $40 when you buy your GT. No sign up required for these.
Battery details are here.
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Video of Drop Test

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That's exactly the reason for this link

Coyotehawk will add your name to his sign up list. You’ll see your name when he does the next update. It will be sometime mid January when you are emailed with the details of where to go and how to order.

You can also buy 8 of the Samsung 35E batteries for $40 at the same time as you buy the light. No sign up necessary for those. There are plenty of batteries in stock.

Welcome to BLF.

You are already on the list for one light.

R/C I didn’t see a link.

same here alex
seems mine is a tad under driven also
i get 240 all day long on my tn42
both my gt lights get exactly 200, every single time
same xhp35, both lights very deep reflectors
i would rather mine be a tad over driven, and have to back it off manually, when the heat got a tad strong

Search Google for "Universal Grab Handle"

I think this type of handle would be the best for the application. Anti-scratch, adjustable, universal for other throwers, easily stowed flat, comfortable...etc. YMMV

There is more info in this link.

Maybe it was discussed before, but let me ask, for the people that already have the GT…

Where is the balance point (Center of mass) in the GT?

With 4 cells at the rear, it is at the switch. Maybe the back half of the switch.

I would guess that with 8 cells it would be right at the blf gt logo.

The LED in the GT is overdriven already. It is run at 2.5A in turbo which is about as high as is practical before rapidly diminishing returns.

You could swap the sense resistor and raise it to 3A if you really wanted but you would only gain a small amount for the first little bit until the LED heated up.

The biggest reason for the lower readings then other lights is that the GT is using a Neutral white 4000k emitter vs the CW ~6500k emitter in most other lights.

The lux meters we use are biased to the cooler white range and will artificially inflate those numbers.

The stock LED is a D4 bin. The highest bin that Cree lists in the data sheet is E2, which is 1 bin above D4. Or about 7% higher output. So 7% higher is about the most you can expect with another LED, everything else should be the meter bias.

Ceiling bounce is not a very good way to judge lumen output, its not going to be very accurate

This is another point, the concentrated beam of the GT could also effect the way the light bounced and cause less light to reflect at all, skewing your readings further.

Basically the LED in the GT is driven as hard as is practical for a production light, harder then most other lights, including the tn42 (it is driven at 2.25A IIRC). So you won’t get much more out of another LED, I wish we could. The only real improvement is going with an E2 bin LED for a 7% improvement. Which we could not source for the GT due to a shortage of NW E2 LED’s.

R/C I googled it and bing kept coming up.

which handle did you have in mind?

Im number 1186 on the list. I would like to order a 2nd one if possible. Thanks