(prototype) the GT Mini

Mortuus meant twice the candela, not twice the throw.

Just to clear things up on my end of it matters. I was comparing to a Thorfire C8s. Their newest C8s. I don’t have a Convoy C8s. Not 100% sure what the difference is.

Stock Thorfire C8s vs. mini GT

Candela is brightness? Tint? I’m confused about that and drawing a blank right now :person_facepalming:

Thorfire C8s uses the xml2 with dome, so bigger hotspot and less throw compared to dedomed version. It and Convoy both have 2.8A drivers. I would suspect the stock C8s to have that 70kcd number, though I don’t know off hand.

So compared to the C8s, the GT Mini has maybe 300 more lumen (2.8A vs 4.5A), a 5mm bigger reflector diameter and a dedomed emitter. This might give it double the candela.

70kcd = 529 meters (x 1.4 = 740 meters)
135kcd = 735 meters

So you would definitely see further with the GT Mini.

(This is all just theory off the top of my head)

Thanks Jason! So how does this group buy thing work? I know I got to put my name on some list but IDK how to do that :frowning:

cd = candela. kcd = kilocandela = 1000 candela.

Candela is a measure of light intensity. The two basic characteristics we measure for an LED are output (in lumens) and intensity (in candela). The lumens measure how much total light is being emitted, while the intensity measures how intense the light is in single spot. So you can have high lumens, but if they are spread over a large area, the intensity will be low. Or you can have low total output, but really focus it in a tight beam and still get high intensity.

Once you know the intensity at the front of the light, you can calculate the maximum effective distance, since intensity decreases predictably with distance. The ANSI standard says you need at least 0.25 cd to illuminate an object. So to find the distance at which the intensity drops below this level, the equation works out to be SQRT (cd/0.25)

The sign-up list is over here.

Got it thanks Delta :slight_smile:

FWIW, I got the SN6X-2X back in the group buy (several years ago) and with a simple lens change to an UCLp it gained 27Kcd. So while we want to think in terms of linear application, emitter/reflector dia/ lumens… the shape of the reflector and the quality of the lens can play a huge role and both are something we very rarely quantify. :wink:

The picture you and your daughter holding the Mini GT is so cute. The flashlight just fits well and is right for her little hand. Now I want one!!! I like the design and style and I even think it’s better than the D1s.

When I’m doing quick calculations/comparisons I do tend to give the manufacturers the benefit of the doubt as far as using high quality lenses and reflectors, etc… Competition can be fierce so they know they need to use good parts and try to be honest about the specs because the guys on this forum and CPF will test and verify these things.

For sure there is always the chance that a bad part can be used by mistake that really hurts performance and my guesses become wrong.

For Mikeadoo, I know he just wants a general comparison. Are they gonna look the same or will the GT Mini throw noticable further? Should he get it or just stick with his C8s?

I think it’s gonna be a nice boost in distance. Not double, but 39% assuming Lumintops numbers are accurate.

Edit:
Here is a review I found on the C8s.

Flashlion measured 2.15A output instead of 2.8A which means it’s not 900 lumen. More like 600 to 650. He also only measured 35kcd. This is only 374 meters.

If Mikeadoo’s C8s is like this, then the GT Mini really will shine twice as far. It’s a huge difference.

Thanks Jason! I don’t have the tools to do the measurements to see if my C8s is like that one, but I still want this mini GT.
Looks cool and I gifted a couple of my stock C8s to my family and neighbors.

If you want to measure throw distances, all you need is a tape measure and a lux meter.

HS1010A or LX1330B are both good and cost from $10 to $30.

Here is a video on how to do it. It’s easy.

You can measure amp draws with a clamp meter like the UT210E for about $33. There might even be a coupon to get it a bit cheaper.

These are cheap, basic tools for measuring flashlights.

You can go one step higher with a Texas_Ace Lumen Tube for about $135. Then you can measure lumens. Not too many folks want to spend that much money, though.

i meant both :wink:

…want to have your cake and eat it too, yes? :wink:

Curious in how this goes. Can’t wait for numbers.

If the light is well done (I expect a good reflector and focussing from Lumintop), the numbers are kind of predictable given the reflector size and led: 1200-1400 lm output, 120-140kcd throw.

Due to EU regulations M4D M4X is not allowed to sell his daughter, you’ll have to manufacture your own.

:slight_smile:

Count me in for 1, maybe 2.

What, no black market there?