old4570
(old4570)
December 20, 2010, 5:59am
8
Updating original post as I go ....
Yes , Im sure you can use the XM-L with a 14500 or 16340 light [ I did ] .
Just cherry pick the driver you want to use , since I dont care about shortening the life of a RCR123A [ I have plenty of them ] , and I also usually dont run high , except to show off , and as can be seen , on low , its 100L . Damn , a 4 mode driver or ramping driver would be real nice [ for less than 100 Lumen output ]
Butt , 0.25A and 100L = I used to think 0.25A was OK for low , not anymore .
fran82
(fran82)
December 20, 2010, 8:10am
9
@old4570
Is this possible?
High / 1.77A / 620L
Med / .69 / 250L
Low / .25 / 100L
620 lumens with only 1,7Amps?
250 lumens with only 0,69Amps
100 lumens with only 0,25Amps?
Budgeteer
(Budgeteer)
December 20, 2010, 8:25am
10
Seems a bit overrated since there were reports of 600-700 lumens at 2,7A
jekostas
(jekostas)
December 20, 2010, 8:30am
11
fran82:
@old4570
Is this possible?
High / 1.77A / 620L
Med / .69 / 250L
Low / .25 / 100L
620 lumens with only 1,7Amps?
250 lumens with only 0,69Amps
100 lumens with only 0,25Amps?
Cree's documentation on the XM-L is 260 lumens at .7 amps for the T5 bin. 658 min flux at 1.77A to the emitter by those numbers.
fran82
(fran82)
December 20, 2010, 8:35am
12
ummmmm If this is possible I will transplant many of my lights to xml
Budgeteer
(Budgeteer)
December 20, 2010, 8:40am
13
If it does true 600LM at 1,8 its a real winner!
fran82
(fran82)
December 20, 2010, 8:41am
14
yep the forever substitute of the P7´s
old4570
(old4570)
December 20, 2010, 10:19am
16
The current measurement is as measured : I cant measure current and light output at the same time [ Id need 3 hands ]
So it may not be entirely right , current may be slightly higher in use [ less MM ]
Unfortunately the A20 unscrews in the middle ... This is only as a guide , sorry , I dont expect it to be 100% , but just to give you an idea ...
Its getting dark now , Ive charged up some 18650's for my SSC P7's , so lets check out the beams ...
But yeah , a bad light for matching current to output , I should have some XM-L T6's in a day or two , so I will build some drop ins for my L2 Hosts
Then I can measure current and output at the same time ...
Beams shortly
rzezniq
(rzezniq)
December 20, 2010, 10:58am
17
620 LM form 1*16430 light.... The world just went bananas.....
Very nice mod!
old4570
(old4570)
December 20, 2010, 11:32am
18
http://www.makeagif.com/91KWYL
Try this , beams as gif ....
Its cloudy , so way to much city lights [ reflected from clouds ] , so very bad conditions for beams , but hopefully you get an idea ...
brted
(brted)
December 20, 2010, 12:56pm
19
That's a neat way of doing beam shots, but can you slow down the frame rate a bit? I don't have quite enough time to look at the picture *and* read the caption. Maybe 2 seconds per frame?
fran82
(fran82)
December 20, 2010, 12:59pm
20
can post them right here one by one?
xP.1337
(xP.1337)
December 20, 2010, 3:49pm
21
is cutter selling them with 14mm boards yet? cant find their board size on their website
uncajesse
(uncajesse)
December 20, 2010, 7:56pm
22
Nice GIF, I'm glad I got the larger reflector of the C8, even though several of those XM-L lights have literally the exact same beam shot images on KD. :/ The A20 is not quite big enough even for a flooder, but DANG can it flood. :D Awesome.
old4570
(old4570)
December 20, 2010, 8:40pm
23
Cutter has 14mm boards ...
Posted a link [ first post ] for full sized pictures if anyone wants them ... Will try for a slower gif
old4570
(old4570)
December 20, 2010, 8:44pm
24
old4570
(old4570)
December 20, 2010, 8:58pm
25
Actually the little light is so bright [ spill is brighter ] it makes it look like it has more flood .. [ I guess it has brighter flood ]
+ the flood is so bright , it makes the center look darker [ optical illusion ] , I guess the camera cant see what the human eye can ...
Thats why I posted a link for the larger images if anyone wants them ..
Unfortunately I dont have a digital SLR with timed exposure , so the pictures do LIE a little ...
But the little XM-L T5 is hot stuff .. Just cant wait for the T6's and hopefully drive them much harder ..
I might buy another T5 , the tint is just perfect for me [ and see how hard it can go in a P60 host ]
XML rules !
But just to say , to the naked eye , it was just awesome , so much light from a EDC , its a sight to behold ...
Kokopelli
(Kokopelli)
December 21, 2010, 9:32am
26
I have a A20B on the mail. I were planning to use it as is but I can transplant its R2 to a thrower and an XM-L or XR-G into A20B. How does it mod? It requires 14mm emitters at most I belive, am I right?
I don't have a 14mm XM-L right now but a 12.8mm R5 is also on the mail. I wonder which one would be most efficient at something like 1.2A current to LED.
old4570
(old4570)
December 21, 2010, 12:39pm
27
14mm would probably be the go ..
XM-L is the most efficient , then Xp-G ...
First thing to watch for = Is the emitter glued down ? Might make it hard to remove without destroying it ...
Then you need to glue the XM-L in place [ thermal epoxy ]
Do you need a new driver ??? or do you wish to use the original ..
Soldering ?
Checking for shorts [ XP-G / XM-L design lends itself to shorting , especially with reflectors that press down ]
Moding is a learning experience , be prepared to break stuff ...