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

[donttellmywifeiambuy (donttellmywifeiambuyinganotherlight)]

@verge

@T18

I’m fairly sure it will shut down, and I don’t believe you’ll be able to push the 30Q’s to far, you can run this light on 4 batteries, actually I think it will run on one if I recall. I can assure you that there’s nothing to worry about especially when TA is behind the drivers functions.

I read the user manual and didn’t find mention of auto shut-off when battery voltage is low.

I think that information is worth inclusion in the user manual if Lumintop decided to revise the user manual.

Gives the user more fun in using the flashlight knowing that it will auto shut-off or give some conspicuous signal like flashing of light when the battery voltage reached a certain low-voltage level.

I don’t know what will happen If I let the flashlight drain the batteries down in use. Will it explode in my hands?

you probably won’t have any hands if it explodes ….

[JasonWW]

You can see the LVP work in this video at 2:05.

Different light, but same firmware.

Narsil Part 3 - Turn On and LVP in Ramping

[T18]

@Newlumen

@T18

Newlumen, are those Astro’s on both ends?
If so how are they ? Been looking at those and thinking about getting one but really they look like knockoff GT’s, still tempted though… ha ha
I’m Addicted to anything that lights up.

Yes… astrolux mf04 xhp35 cw and mf04s xhp70.2 cw… mf04s is really nice light but little bit green… lumen spec is very similiar to blf gt70…

Thanks for the info Newlumen, I think I’m going to pass on those as tempted as I am, I am getting way to many huge lights lately but I’m darn happy that’s for sure.
Is purchasing flashlights tax deductible on my income tax, ha ha Mr. JASON… ha ha ha

[verge]

@T18

Hey Verge on the first page of the user manual titled Safety precautions which was for the GT XHP35 but same thing as the GT70 it says on section 4,
Remove and recharge cells when the low voltage indications is given by the GT (repeated step-downs in light levels and eventual shutdown of the light.)
Direct quote for you friend, so have fun and no worries…

I missed that, my bad.

Good to know, thanks for pointing that out to me.

My mind is stuck in the Sofirn text of its battery low-voltage protection.

[verge]

@donttellmywifeiambuyinganotherlight

you probably won’t have any hands if it explodes ….

I remember reading in one of the posts in this forum or at the other forum some years ago about rechargable lithium batteries exploding inside the flashlight.

The explosion caused the flashlight’s end cap to shoot out like a bullet and fortunately just hit a wall.

[verge]

[quote=JasonWW]

[quote=verge]

@T18

When voltage reaches 3v it will blink 3 times and step down to a lower level. I think it will shut off the light completely at 2.8v. (Don’t qoute me on the exact voltage) So there is no chance of over discharging the cells.

There is a small amount of parasitic drain when off, though. So if you don’t plan to use the light for several months, it’s best to turn the tail cap to cut all power.

The emitter is 12v so you have to have at least 4 cells in a carrier. The other carrier can be empty if you want.

Thanks for the information JasonWW. That gives me more confidence in using the BLF GT70 flashlight.

That technical information is worth including in the BLF GT70 User Manual.

More information about the safety features of the BLF GT70 is worth passing on to the users.

[j8048188]

Loving my original BLF GT. In for a NW model and a conversion kit.

[NITEbiker]

@verge

@donttellmywifeiambuyinganotherlight

you probably won’t have any hands if it explodes ….

I remember reading in one of the posts in this forum or at the other forum some years ago about rechargable lithium batteries exploding inside the flashlight.

The explosion caused the flashlight’s end cap to shoot out like a bullet and fortunately just hit a wall.

The story I saw on the other forums was where the light got insanely hot all of a sudden so the user dropped it at which point it blew up and ended up putting a pretty big dent in the bottom track (likely alloy) of their sliding door from the end cap or the head shooting off under immense pressure. They then had to deal with hydrofluoric acid inhalation and potential poisoning. Not fun.

I think battery technology has come a long way since then so I am not overly worried. You’ll hear of vapers popping their toys before us flashaholics!

[NITEbiker]

…AND SO MY GT70 HAS ARRIVED!!!

Picked up in Singapore late Friday night (AEST) and delivered today, Monday, at about 1pm. Not bad DHL! Obviously it went out after the US shipments or the service they used to get it to DHL in Singapore was a bit slow. Either way, I can’t complain about that!

So…the GT70…hmm what a beast. My biggest light up until now was a Thrunite TN40 which is just dwarfed by this gigantic monster.

As for springs, mine all seem fine. Ordered batteries seperate so obviously no damaged cells.

The lens had a big spot of moisture (looked foggy like some lights get after a while on high) on the inside of the lens, dead centre, about 3cm in diameter. Turning on the light for a few seconds of turbo a couple of times and it has disappeared. I’ll keep an eye on that, hopefully don’t have to use some silica gel packs to dry it out.

Now, onto the reflector, there is a noticeable deformity on the coating but doesn’t appear to show up in use. It looks like a tiny ripple and has to be moved around to be seen but if you know it is there, it is really easy to spot. I am less concerned about this than the possible moisture trapped in the head but will have a better look when it gets dark to see if I can see any artifacts in the beam. From what I have heard about the past issues with original GT release, this is nothing to worry about as some of those were reportedly quite bad. I don’t have a good camera and my galaxy S9 doesn’t pick the defect up unfortunately or I would share images.

[ToyKeeper]

@joechina

@TK
Oh, you made the shirt the wrong way.
Text and pics on a shirt like this need to be upside down, so you can read it.

I didn’t make the shirt. People did discuss printing it upside-down though, to make it easier to read while wearing it.

After people received the lights they ordered, and were able to try the interface, the shirt thing really faded away. People thought at first it would be complicated or confusing to use, but then they tried it and realized it’s simple. So, no need for a wearable reference chart.

[Tally-ho]

@verge

I remember reading in one of the posts in this forum or at the other forum some years ago about rechargable lithium batteries exploding inside the flashlight.

The explosion caused the flashlight’s end cap to shoot out like a bullet and fortunately just hit a wall.

It all depends on the lithium chemistry. An IMR is only going to leak at worst when overdischarged when a LiCo is going to vent/ignite.

[Texas_Ace]

@JasonWW

@verge

@T18

I’m fairly sure it will shut down, and I don’t believe you’ll be able to push the 30Q’s to far, you can run this light on 4 batteries, actually I think it will run on one if I recall. I can assure you that there’s nothing to worry about especially when TA is behind the drivers functions.

I read the user manual and didn’t find mention of auto shut-off when battery voltage is low.

I think that information is worth inclusion in the user manual if Lumintop decided to revise the user manual.

Gives the user more fun in using the flashlight knowing that it will auto shut-off or give some conspicuous signal like flashing of light when the battery voltage reached a certain low-voltage level.

I don’t know what will happen If I let the flashlight drain the batteries down in use. Will it explode in my hands?

When voltage reaches 3v it will blink 3 times and step down to a lower level. I think it will shut off the light completely at 2.8v. (Don’t qoute me on the exact voltage) So there is no chance of over discharging the cells.

There is a small amount of parasitic drain when off, though. So if you don’t plan to use the light for several months, it’s best to turn the tail cap to cut all power.

The emitter is 12v so you have to have at least 4 cells in a carrier. The other carrier can be empty if you want.

Yep, that^.

It does have alow voltage protection so you should not have any problems with cells getting too low as long as all 4 cells in each carrier match.

While you can use only 4 cells in the GT70, it is best to use 8 cells since it draws a lot more power then the normal GT.

[verge]

@Tally-ho

It all depends on the lithium chemistry. An IMR is only going to leak at worst when overdischarged when a LiCo is going to vent/ignite.

The toxic lithium chemical leaks or fumes are things I want to avoid happening near me or in my house.

The bad effects to the body of the lithium chemicals or fumes and cleanup of the toxic mess are not fun things to me.

If I can’t use protected lithium batteries, it’s comforting to know that my flashlight have safety features that would prevent the battery from over-discharge that may cause those unwanted events.

I feel more confident in using this flashlight after reading JasonWW’s detailed explanation of the BLF GT70’s safety features.

[Mobyengr]

I’m in for one.

Completed the form for:
1 x GT70 (NW)
2 x Carriers
1 x Reflector (Maybe)
1 x Lens (Maybe)
8 x Batteries

Would also like to get a case and a strap.

[atbglenn]

I’m going to ask one more time. Are there any plans to offer spare parts for the GT70?. Like switches, driver boards, lenses, etc? It’s an expensive flashlight. I want to be able to fix it if something goes wrong.

[Texas_Ace]

@atbglenn

I’m going to ask one more time. Are there any plans to offer spare parts for the GT70?. Like switches, driver boards, lenses, etc? It’s an expensive flashlight. I want to be able to fix it if something goes wrong.

The conversion kit is as close as we will get to most of that. It does include the driver, mcpcb, LED, switch and centering ring.

[gman7228]

In for one GT70 NW and batteries. Thank you for a great addition to the original!

[atbglenn]

@Texas_Ace

@atbglenn

I’m going to ask one more time. Are there any plans to offer spare parts for the GT70?. Like switches, driver boards, lenses, etc? It’s an expensive flashlight. I want to be able to fix it if something goes wrong.

The conversion kit is as close as we will get to most of that. It does include the driver, mcpcb, LED, switch and centering ring.

Thanks pal

[Kingjohn]

Got my GT70 today, one day earlier than planned. (taxes and fees: ~70.- USD, so less than expected)

Output really is impressive, still have to do some measurements (just using ceilingbounce)

Included are the already expecting narrow battery carriers and unfortunately a reflector in a not so mint condition....

There seems to be a dent on the reflector.

I have shot some pictures to display the issue, all of which can be found in this album:

BLF GT reflector issue Pictures

The dent is clearly visible on the reflector and also on the white ceiling.

a shadow in the corona at 8 o'clock:

Even if the effect on the output will not be very high, I am not very happy to get a B-grade reflector..

Could it be, that Lumintop is now using reflectors that have been rejected in previous batches?

Maybe they can send me a flawless one....

[BlueSwordM]

Usually blemishes affect the beam, but since yours does affect the beam, you should ask for a replacement reflector to be shipped.