vawayne
(vawayne)
August 9, 2011, 11:11pm
1
Ok the light specs say it will take 3 cr123a if you take off 1 ext tube so do I have this right 3 cr123a = 9 volts
But if I leave on the ext tube it will take 4 cr123a which =12 volts right? so will this be ok with 4 cr123a?
It says for the light max 5.6~12v
http://www.dealextreme.com/p/fandyfire-stl-v6-cree-xm-lt6-2-mode-1000-lumen-white-led-flashlight-2x18650-3x16340-3x123a-91137
agenthex
(agenthex)
August 9, 2011, 11:15pm
2
According to the spec you should be ok w/ primaries, but specs from chinese manufacturers are often known to be arbitrary. If you want guarantees you'd have to look at the driver chip to see if it's actually supported. However, if you're just curious what you could do is use a meter (DMM) to quickly connect briefly enough to get a current reading. If it's <1A, you should be good to go.
vawayne
(vawayne)
August 9, 2011, 11:24pm
3
so are talking about takeing a tail cap reading like you guys do? I still waitng for my multimeter it should be here any day
now..
agenthex
(agenthex)
August 9, 2011, 11:30pm
4
Yes, just do it quickly (only long enough to get a reading, even <1sec). Of course, no guarantees of anything, but it's safest way of doing it barring opening it up and looking at the driver chip (which you can should also do and take pics if you're so inclined) :).
old4570
(old4570)
August 9, 2011, 11:31pm
5
Its one thing to stretch a 8.4v driver to 9v especially as the primaries do Voltage sag when the light is turned on ..
Its another to stretch a 8.4v driver to 12volts ...
Im not saying its not a 12v driver , but I find it hard to trust the spec's ....
I still fondly remember buying a 15v driver that was unable to handle 12v [ bought 3 of them ] , though they seem to work well with 8.4v ...
Anyhows , just giving my 5c worth ....
vawayne
(vawayne)
August 9, 2011, 11:50pm
6
@agenthex
LOL.. heck Im just learning to check Vs on 18650s batteries and I dont think I can take apart my light
without breaking it.....yeah I know I can take it apart but putting back thats the problem
SashiX
(SashiX)
August 10, 2011, 12:48am
7
Too many Fandys @DX lately :bigsmile:
24 cm long and 6 cm diam. :O Must throw very well.
agenthex
(agenthex)
August 10, 2011, 12:59am
8
Some additional info, this light is supposed to be similar (ie clone) to this, which claims similar spec (up to 4 lith primaries):
http://www.batteryjunction.com/olight-m3x-triton.html
of course no guarantees.
vawayne
(vawayne)
August 10, 2011, 1:08am
9
@agenthex
what about the sky ray stl-v2 it looks the same...also I took off front bezel of my light but there was no numbers or ID
on the driver chip do I have to go further like un screw those philip screws...
vawayne
(vawayne)
August 10, 2011, 1:12am
10
agenthex:
Some additional info, this light is supposed to be similar (ie clone) to this, which claims similar spec (up to 4 lith primaries):
http://www.batteryjunction.com/olight-m3x-triton.html
of course no guarantees.
You think this light is close to the fandyfire
agenthex
(agenthex)
August 10, 2011, 1:22am
11
A member here who has both claims that they're quite similar (or more accurately I think he has the Skyray branded version), but I don't know if he's taken them apart to verify this.
vawayne
(vawayne)
August 10, 2011, 1:36am
12
agenthex
(agenthex)
August 10, 2011, 2:25am
13
Well, the numbers on there don't make sense either. It claims to be a "m31", when the m31 is a sst50, not XML (though I suppose the MCPCB specs could be the same). Are you sure it's a skyray? Photos from our own forum's review:
https://budgetlightforum.com/t/-/2858
Mine's shipped from dx, and I'll have it hopeful soon.
2100
(2100)
August 10, 2011, 2:32am
14
Better don't try it. It cannot turn on with 6V though.
vawayne
(vawayne)
August 10, 2011, 3:19am
15
agenthex:
Well, the numbers on there don't make sense either. It claims to be a "m31", when the m31 is a sst50, not XML (though I suppose the MCPCB specs could be the same). Are you sure it's a skyray? Photos from our own forum's review:
https://budgetlightforum.com/t/-/2858
Mine's shipped from dx, and I'll have it hopeful soon.
My bad.... they were showing sky ray bu thet last pic was a olight mx3
..you were right....I guess I just stay with 3 cr123a to be safe