Lumintop GT4

ok i meant that imalent clearly has quality issues, so fan or not they suck on thermal management stuff, thats what i meant im hoping lumintop will do a better job since it will also run passive but with huge heatsinks…

…let’s wait the first reviews…

With Narsil you can set the thermal regulation to a custom temperature, set it to a timed limit or turn it off completely. All big advantages in my book. Thermal regulation that kicks in too soon or too late or not at all can really bug me.

I was just trying to help explain what Mortuus said since I understood him. I guess I failed. Oh well.

adam7027, this sounds like a great idea. I love 4500k!

Active thermal regulation in well designed driver/firmware like the Zebralights work very well. You don’t even notice the ATR kicking in but the lumen output stays much more consistent making it more practical for most use cases.

IMO ATR is no benefit on a thrower, and rarely elsewhere. Once it kicks down I’m not going to keep a thrower on and wait for it to ramp back up, never. Apparently I’m in the minority on this and that’s ok, I wasn’t actually trying to convince anybody to agree with me. You also don’t understand how versatile the R90C is if you think it needs it.

Really depends on how you use your light. For example, if you want to use your Emisar D4 as a tail standing work light, lumen output will drop down to 50 lumens making it useless for that application. It stays really cold at that output but does not know how to climb back up. Whereas a well designed light with ATR of that size will find an equilibrium temperature/output at about 500 lumens making the light very practical for unattended uses.

I was just about to pull the trigger on a GT70 but holy hell, looks like I’ll be waiting a bit.

I’m pretty excited about this beast! I’ve already been showing my wife pictures and talking about so there’s no surprise when a $400(just a guess) flashlight shows up.

The GT4 needs at least one heatpipe spiraled under the shelf, going outside of the flashlight, and rolled at the bottom of the head fin, which will be machined like a continuous large deep threading instead of separated multi || fins.
I’m only dreaming…

See a spiral at the center with a notch in the aluminum base for the heatpipe “go-through” (filled with thermal epoxy).

Compaired to my MF04S my GT70 is just just too HEAVY. Cant keep track of a moving target, and it gets just as unusably hot as the my astrolux after 2mins, then steps down. Will the GT4 be another Toy?

Well, knowing the GT70 has 8x18650s with an 8x18650 body with a bigger heatsink and higher power, it has to be expected.

Without batteries in the GT70 it is heavier than my MF04S with batteries.

I would love to do this as well but the cost would go up a LOT if we tried this, just not worth it I am afraid.

Plus early tests show that the GT4 has great thermal properties as it is.

The GT4 will have far better thermal properties then either of those lights, on turbo though it will of course still get hot enough to need to step down, that is expected with a ~300w light.

We are trying to get them to make a handle for the GT4 to make it easier to hold and it keeps your hand away from the light itself, so you could disable the thermal protection and it would not burn you if you desired (the light itself should be fine but will need to test to make sure).

It WILL be heavy though, that much is known for sure.

I googled “hot and heavy” and this thread was on the first page, unfortunately I was looking for non-flashlight porn this time

:person_facepalming:

lol haha,… :open_mouth:

Google knows you and your preferences.

Lol must be true :+1: