The BLF GT70 "Giggle Monster" is here! 7,500lumens, 1,500m throw! Group buy Closed!

ZozzV6 · October 4, 2018, 4:53pm

It has double click turbo. But it is only works when the light is on. from off with a double click you jump to ramp max.

Texas_Ace · October 4, 2018, 5:28pm

Ah, ok I get it now, that is pretty nice. What happens when you ramp down from 100% turbo with the ramp max set at say 50%?

ZozzV6 · October 4, 2018, 5:39pm

First it jumps down to 50% and if you keep holding it ramping down to moon. You also can set moon level anywhere you want.
I made a complete Anduril UI setup and how to video:

bhstinger · October 4, 2018, 6:16pm

Texas_Ace:

bhstinger:

I have a technical question about output once exiting turbo mode with a push & hold, but don’t have a way to measure output (accurately).
Maybe someone knows the settings in Narsil or has measured this already?

I noticed a push & hold, to come down out of turbo, jumps to a level noticeably lower then the top of the ramp.
TA shared that top of ramp is 50-60% output, so I’m guessing maybe 40-50% output. Does anyone know actual output % or current at this level out of turbo?

So to replicate: while in turbo, push & hold to come down from turbo. The first level jumped to is the level I am curious about.
A fast push & hold from here will bring you back up to the top of the ramp.
It is nice to have 2 hard stop locations in the ramp like this.

Also, does 2 E-switch led flashes still indicate the FET is starting to be used for output?

A big thanks to everyone involved in this project. A great light and fast GB! :+1:

Yes, that is how it is supposed to work, it is a limitation of the NarsilM firmware at this time.

The top of the ramp is around 50-60% as you said (forgot exactly what I settled on). When you ramp down out of turbo it jumps down to the top of the ramp.

If you really want a 100% ramp you can re-flash the MCU to allow this.

Yes, I do believe that the 2 e-switch flashes are when the FET engages. Although, it really does not matter that much and come to think of it, I don’t remember if I updated that setting for the new ramp. So it might be off by a fraction of a second worth of ramp.

Thanks TA! I am very happy with top of ramp around 50-60% for the reliability factor you mentioned.

I thought that coming out of turbo would put you back to the top of the ramp again. However, that is not the case on my CW version. Top of ramp is a higher level than the first level coming out of turbo. (Didn’t test on NW version yet)
It’s not an issue, I was just curious about that level and if others have noticed this too.

Great explanation and visuals on the differences between Narsil & Anduril above. I am super happy with Narsil as is. Will have to flash and play with Anduril one day soon too. Thanks to BLF, it seems flashing the MCU can be accomplished by almost anyone willing to read and learn the procedure.

JasonWW · October 4, 2018, 6:29pm

Zozz, you didn’t say you reflashed the driver on that D4S. People might get confused.

ZozzV6 · October 4, 2018, 6:35pm

Thanks for the heads up!
I written it in the video description now.

Texas_Ace · October 4, 2018, 7:26pm

Interesting, so it does work just like Narsil in that sense.

Texas_Ace · October 4, 2018, 7:33pm

Strange that it is not dropping to the top of the ramp on yours, I tested it on my light and that is how it works.

Now it does start ramping instantly, so most likely you will ramp down a little before you release the button thus giving you a slightly lower level.

bhstinger · October 4, 2018, 10:36pm

Texas_Ace:

bhstinger:

Thanks TA! I am very happy with top of ramp around 50-60% for the reliability factor you mentioned.

I thought that coming out of turbo would put you back to the top of the ramp again. However, that is not the case on my CW version. Top of ramp is a higher level than the first level coming out of turbo. (Didn’t test on NW version yet)
It’s not an issue, I was just curious about that level and if others have noticed this too.

Great explanation and visuals on the differences between Narsil & Anduril above. I am super happy with Narsil as is. Will have to flash and play with Anduril one day soon too. Thanks to BLF, it seems flashing the MCU can be accomplished by almost anyone willing to read and learn the procedure.

Strange that it is not dropping to the top of the ramp on yours, I tested it on my light and that is how it works.

Now it does start ramping instantly, so most likely you will ramp down a little before you release the button thus giving you a slightly lower level.

Thanks TA. It still seems like it steps down further for me but as you said, I’m likely holding the button for too long.
Thanks again for the info on this and looking forward to the next new project from you.

species8472 · October 5, 2018, 3:48am

GT70 = IMPRESSIVE

My GT70 arrived today. Tracking says it left China on the 3rd, China time, and got to PA on the 4th, east coast time. That was even with an error on the shipping label. Way to go DHL.

Fantastic light. The construction looks to be flawless. The light output both in lumens and profile is far better than expected. As Texas Ace has been saying all along, it is much more useful in real life situations than the original BLF-GT. It will definitely get more use than the original but both lights have their own uses that they excel at. I can't wait to have a longer time to play with this Giggle Monster.

Many thanks to all those involved in producing this and in pushing for the 70.2 version.

Newlumen · October 5, 2018, 4:03am

Yea… blf gt xhp35 is not a big deal any more when you turn on the gt70… so much light… i still like my xhp35 version for the xtreme throw…

beastlykings · October 5, 2018, 4:37am

Am I wrong, or couldn’t you dedome the xhp70.2 and get slightly more throw than the OG GT? As well as more otf lumens than the OG GT? Kind of the best of both worlds? I think this is my plan.

Newlumen · October 5, 2018, 4:54am

You could try it… all the people i talked to tell me xhp70.2 dedome give horrible green tint…

I_like_lamb · October 5, 2018, 6:22am

My BLF GT arrived today but it was damaged in a way that I cant use it. Should I PM the OP?

[Album] imgur.com

JasonWW · October 5, 2018, 6:54am

Wow, that is really odd for a DHL box. You would need to contact Leo or Neal next week when they get back to work from the holidays.

I_like_lamb · October 5, 2018, 7:13am

I assume you mean upcoming Monday?

NITEbiker · October 5, 2018, 7:13am

I don’t know about the NW version as I just received it today and want to test it out a bit before I de-dome so I can hopefully compare the tint shift but the CW version didn’t have any abhorrent tint shift to me.

I’m not overly fussy when it comes to tint except for when there is blue or a very orange/yellow tint so you may see the green that others see or are annoyed by and I could just be ignorant to it. The only time I ever thought it was greenish was when I ramped up from low on a white wall but that disappeared at the higher levels IMO which is pretty much where this light will see most use for most users so I think it to be a non issue.

All of that is moot anyway unless you have opened the sucker! I broke some strap wrenches the day I bought them. A few days later and I picked one of these bad boys up and had a bit of a struggle but it was only due to the sheer force they use to close these lights!

JasonWW · October 5, 2018, 7:39am

Yes. Oct 1-5 is a holiday, so expect a response after the 7th.

I_like_lamb · October 5, 2018, 7:52am

Cheers!

JorisFRST · October 5, 2018, 10:07am

Found my GT70, DHL left it 5 houses down the road in the garden.

Light is fine, looks pretty impressive too