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

100% right. I was almost going to say exactly what you said.

Sure,the big reflector is forcing me :beer:

Regards Xandre

I hear ya it’s gonna be sweet :+1:
And the fact it’s designed by peeps on here - that’s awesome

“Make things as simple as possible, but not simpler.”

Also add me to the interest list

OP updated

Yes thatBoss1 has a nice beam profile and a scaled up reflector like that would fit the render of ar right?
Didn’t hear back from the reflector software peple, but o course t is holida season in the US so all things like that will probably be taken to next week.

Please put me down as interested, cause I surely am. :+1:

:wink:

will do later!

Here the boss with XHP 35 ca 400 Meter:

but I want more.

Regards Xandre

I really think we should go with a buck driver or a linear driver like the ld-2.
Do we know what happens when you hook a xhp35 up to a 4s2p setup using a fet driver?
Will it kill the led?
Though I’m not sure if a buck driver has enough voltage overhead to work properly when the cells discharge?

XHP35HD (E21A 6500k IIRC) De-domed- Mtn Max 4S special built driver, 4SK70 carrier, 4 VTC5’s burn in at 1 minute mark….

The set-up

Sweating bullets! :person_facepalming:

I just awoke thinking/dreaming this question:

Two 4s1p high drain 18650 carriers in parallel becomes 4s2p. One carrier is fully charged (16.8 volts) and the other is depleted (12 volts). If these two carriers are installed in the GT, the voltage would try to equalize as quickly as possible.

Is this safe?

Lets be serious here, nobody will use it with 8 cells.

8 cells are too much i think .
weight (with cells inside) and charging 8 cells , are the 2 things i think most (as an “issue” for me) .

People keep whining about wanting a short tube yet when we showed you want it looks like it was unanimous that it was stupid looking and horribly unbalanced.

The only fixes for this that people had while keeping it a hand held light was to extend the handle to improve balance both cosmetically and weight wise.

Thus putting us right back where we started. If the handle will be extended for balance anyways, why the heck would we not allow it to be used with 8 cells?

Then simply use 4 cells.

Very well said ‘Texas_Ace’… all of it. :+1:
+1

Yea, the MT07 sure looks unbalanced with it's big head and 4 cells but actually with 4 loaded cells, the balance point is right at the 1/4 20 tripod point aligned with the switch. Of course our head will be much wider and probably longer than the MT07's, and still the MT07 feels awkward because you can't comfortably hold it on the battery tube.

The Sky Ray S88 and it's clones is an example of 8 cells and a fairly big head of 100 mm in width, but doesn't use battery carriers, so overall battery tube would be shorter.

If people wanted to give up the ability to run XP-L or XP-G2’s we could give up the battery carriers as well. The only way to use those LED’s without battery carriers is with a buck driver, which would cost 40% of the total light cost.

Or you could use dummy cells as well I suppose but seems a lot easier to use just cell carriers. Although if cost becomes a major issue then we will have to reconsider things anyways. We won’t really know any of this until we have a manufacture on board.

The HaikeLite's do both 2S2P and 4S with no carrier.

Correct, this light could also do 2S with up to 4P or 4S up to 2P without a carrier.

The issue is it could not do 1S without dummy cells or a carrier.