1.73A in bare lumens would be 600, for the XM-L T6 efficiency bin. So emitter lumens. Now we need to take into the consideration the reflector and the glass. That will cut a certain percentage from the light. I would go with POK's 1600 lumens estimation.
Is it not possible to just measure the current draw on one 18650 and divide that by 4? Or is the current draw on 1 cell too high?
And at 1600 lumens, it can't be brighter than the DRY on Turbo then but according to the's pictures, the King is brighter.
That is our estimation based on the current, which is not a precise one, as the current reading itself may not be precise.
My flux estimate is nearly 2400 lm, so I think each LED gets >3A.
But how are you obtaining that flux estimate? Light box? Lux meter? Power draw?
DRY turbo
King
DRY Turbo
King
Pics taken from ersecu of Taschenlampe forum.
Both torches are CW. Looks like DRY still has the lead to me, which is inconsistent with most tests so far from the and drjones.
Damn, some great pics there!
Not sure should I or shouldn´t I...
Well, it would be interesting to make a measurement with that integrating sphere and compare it to my previous DRY´s figures.
I re-did my wiring for current measurement and got now results from 7.0A up to 7.7A, which might be nearer the real value. [I'm still not sure about the wiring.. It might still restrict the current a bit?]
Holding the wires and operating camera at the same time isn't easy, but here's some kind of proof of the measurement:
And as I was at it, I thought that I would measure the beam intensity at the same time (@4m, calculated back to 1m):
DRY NW Turbo 20.1kcd
King NW High 22.7kcd, Low 2.7kcd
xed888: The pictures you added above don't show up to anyone, who's not logged in to taschenlampen-forum.de.
Added the following to the review:
Ceiling bounce figures for a five minute run indoors, ambient temperature 24 degrees Celsius (DRY Turbo vs. King High):
After the five minute run the DRY was "almost too hot to touch". King was only "hot", significantly cooler than DRY.
Amazing! How´s that possible? 8)
Driver-efficiency or just plain raw bulk on cooling?
between this and dr jones, sounding like driver, and maybe even cell? efficiency
I was wondering why I couldn't see his images
Nice graph :)
Part of DRY's sag may by battery related though, it's direct drive, whereas I think I've seen an image of the KING's driver which has coils, so I guess it uses three buck drivers and thus is regulated.
.
With that 4th cell, it's going to have more staying power. IIRC, each LED has it's own driver too.
updated the pic links. sorry about no mouse overs. no idea how to do that
i'll do it for ya..mouse off for Dry..on for king..
Seems like the King is the New King
The King is Dead
Long live the King
vice versa?
Unless the guy posted it wrong, i made sure i copied it properly.
it does look like the dry is still brighter.