(prototype)  the GT Mini

M4D_M4X · 2018-06-16T06:55:31.000Z

timbuchanan:

M4D M4X are you able to weight the prototype?

152g on my kitchen scale

JasonWW · 2018-06-16T07:02:50.000Z

timbuchanan:

Great answer Jason. I guess I was thinking one of the maths wizzes would be able to do an estimate runtime - I was amaze someone way able to assess the max kcd based on the head size? Must be some crazy parabolic analysis haha

Assuming the internal mass of this light is the same as a C8, then we can ask someone with a C8 that has a fet driver running an xpl or xm-l2 at about 4.5A what kind of runtimes they get on turbo.

A stock C8 has a 2.8A draw and turbo does not effect it greatly. That’s just 10 watts.

The mini GT should be around 18 watts. Maybe someone can chime in about the thermal limits.

I think the reflector size is also about C8 sized and just as before, I’m sure there are people running xpl-hi emitters in them that can give us a close approximation of the candela.

So there’s no real math involved, just comparisons to similar lights.

komeko · 2018-06-16T07:16:10.000Z

M4D M4X:

timbuchanan:

M4D M4X are you able to weight the prototype?

152g on my kitchen scale

Super, along with the battery is half the weight of UT02. When when will it be available? :smiling_imp:

JasonWW · 2018-06-16T07:22:45.000Z

M4D M4X:

timbuchanan:

M4D M4X are you able to weight the prototype?

152g on my kitchen scale

That is comparable to the Convoy C8 at 145g (according to Banggood website).

That C8 has a 44.5mm head diameter compared to this lights 50mm. So the mini GT has a 5mm bigger reflector.

d_t_a · 2018-06-16T09:50:32.000Z

Wasn’t able to read the messages in between the first page and this.

But it seems to be very similar to the Emisar D1S (ramping).

Any idea how much better it compares to the Emisar D1S or are they mostly similar in terms of brightness and throw distance?

JasonWW · 2018-06-16T10:13:54.000Z

Emisar D1S has “RampingIOS” UI, sometimes called the Emisar D4 UI. It is based off NarsilM, but Emisar owner Hank wanted some changes to make it unique. If you like one, you’ll like the other.

I think they will be very similar in performance. Both have 50mm head, same weight, same emitter, similar brightness, similar price, etc… We still don’t know what driver the mini GT will use. It’s to be determined.

In my opinion, the big difference between it and the D1S is styling.

DB_Custom · 2018-06-16T17:45:34.000Z

There’s much more to a reflector than it’s diameter, depth also determines efficiency not to mention the coating quality and the nature of the emitter opening in conjunction with the centering ring and factory acquired focus… and of course the lens quality also greatly influences out the front lumens production.

One can always assume whatever they wish, without actually measuring a production light it’s just going to be impossible to know… (even then the measurement results will be hotly debated. )

JasonWW · 2018-06-16T20:29:04.000Z

Madmax showed “measured 145000 cd (@3m compared to C8s / acebeam L16 / Imalent RT35 / Emisar D1)” on post #2.

I take these measurements with a grain of salt. It’s in the same ballpark as the D1S, so I would say they are equivalent. It may not match exactly to those other lights, but I doubt our eyes will see a difference.

Maverick1947 · 2018-06-17T05:34:57.000Z

Any word on how it’s going to ship? On the GT I had to pay 40$ for DHL and now I’m having troubles with my customs. It has been stuck at the customs 60miles from me for 2 weeks now.

JasonWW · 2018-06-17T05:48:10.000Z

Maverick1947:

Any word on how it’s going to ship? On the GT I had to pay 40$ for DHL and now I’m having troubles with my customs. It has been stuck at the customs 60miles from me for 2 weeks now.

The GT was a special case due to its large size and weight. This Mini GT is able to be shipped just like any other small flashlight similar in size.

Maverick1947 · 2018-06-17T05:56:04.000Z

Let’s hope so! Thanks Jason.

Phlogiston · 2018-06-17T06:37:31.000Z

Does the MiniGT accept protected cells?

Angel_Martinez · 2018-06-17T07:07:17.000Z

IN FOR 2!

JasonWW · 2018-06-17T07:15:33.000Z

Angel Martínez:

IN FOR 2!

You have to sign up at the link here.

[M4Ddeal active] : Lumintop GT Mini - 2 authorized deals BLF User Negotiated Deals

Here it is - the groupbuy for the "GT Mini" [image] for more pictures and data / discussion please go here: https://budgetlightforum.com/t/-/51714 GT Mini User Manual deal is public visit Neal's Deals and scroll down a bit to find the GT Mini https://m4dm4x.com/neals-deals-2-2/ Update : banggood.com listed the Lumintop BLF GT mini XPL HI 1200LM Stepless Dimming Portable EDC 18650 LED Flashlight [image] use my code MMNTG to lower the price to US$ 39.50 ($49.50) also …

Angel_Martinez · 2018-06-17T07:20:31.000Z

Okay. Thank you so much.

lionheart_2281 · 2018-06-17T07:39:14.000Z

Filled out the form, it’s a thrower so it’s gotta be a CW version

Legit question from a non modder: why not use a boost driver and put in a XHP35? Is the emitter too big for that reflector and it won’t be a thrower anymore? Or would heat be the issue?

JasonWW · 2018-06-17T08:02:46.000Z

lionheart_2281:

Filled out the form, it’s a thrower so it’s gotta be a CW version

Legit question from a non modder: why not use a boost driver and put in a XHP35? Is the emitter too big for that reflector and it won’t be a thrower anymore? Or would heat be the issue?

There’s already 3 or 4 lights like that. The price would go up probably 50% or more. I don’t even think Thorfire has a boost driver that can do 30w. I’m not even sure they can build boost drivers, much less one as powerful as they need to exceed this xpl’s output. These are all my guesses.

djozz · 2018-06-17T10:28:03.000Z

^ not Thorfire but Lumintop, but they are also not top of the range in designing their own drivers. I’m still betting they use a TA driver.

JasonWW · 2018-06-21T20:36:39.000Z

Woah, I guess I had Thorfire on the brain.

Lumintop does have a boost driver in their ODL20C. It’s a little bit bigger than this light. About the size of the Utorch UT02. It must be new. It’s got a xhp35-HI and is rated at 2,000 lumen using a single 26650.

What I don’t see in their store is a C8 sized light. Maybe they think the mini GT with xhp35-HI would overlap in sales with the ODL20C.

DB_Custom · 2018-06-17T14:51:26.000Z

Unless the XHP-35 can be driven at a real-time 2.5A (at the emitter) it can be beaten by a well driven XP-L HI. I got the Lumintop version of the UT02 and it was fairly pathetic so I replaced the 35 with a XP-L HI and used TK’s Anduril, it does 1700+ lumens and throw is around 212Kcd as I recall, like it a lot more this way. (This may be the ODL20C, it wasn’t named when I got it from TK… she sent it to me in a Pringles can so I call it my Pringles Thrower. lol)

Drain on the cell is actually less with the overdriven XP-L and lumens is only slightly less while throw is more, so it’s a win all around to get the nicer UI… or for me it is anyway.

Lumintop is building some excellent lights these days so the Mini GT should be a true win whichever way they go with it.