Can this bulb be used in a Mag mod? Has it already been?

[Tessaiga]

Went down to a local hardware store today and came across this bulb by Osram

HLX 64655
250W 24V
G6, 35
Xenophot

possible to run it off 6 X 14500 or would it kill the 14500 instantly...??

my concepts aren't that sound.. so go easy on me..

 

[RickB]

Tessaiga,

Mac made a 250 watt Mag mod that used this bulb.
http://www.candlepowerforums.com/vb/showthread.php?p=1949453#post1949453

As far as running it with 6 14500 LiIon cells, not going to fly. This bulb, even at its rated 250 watt output will be drawing over 10 amps at 24 volts. It looks like a typical 14500 is rated around 700 to 900 mAh. Rule of thumb for LiIon cells is that they should not be subjected to a current draw of over 2 "C"; in this case that would be 1.4 to 1.8 amps. As you can see, there is a large gap between what 14500 cells can produce and what you would need.

To power this light you would need (speaking theoretically) either: 7 LiIon cells with a rating of at least 5000 mAh (basically LiIon D cells, if they ever come to pass); or 20 or 21 NiMH cells capable of 10+ amp draws. How to get all that into a host, good question!

It looks like Mac used one of Fivemega's "elephant" custom body and wide battery holders. These seem to be super-rare and haven't been produced for a while.

-Rick

 

[LuxLuthor]

It is true that Mac used 20 of the Elite 2/3A 1500mAh cells for that mod. Only option for that lamp package now is a Tribored 4D.

 

[Wincet]

I'm not to experienced with modifying flashlights so I don't know if this is electrically sound, but couldn't all the AA NiMH cells be fitted into a 5 or 6 D maglite? If a cheap DIY adapter from Ds to AA either 3 from each D or 4 wouldn't it be pretty reasonable?

 

[strideredc]

I'm not to experienced with modifying flashlights so I don't know if this is electrically sound, but couldn't all the AA NiMH cells be fitted into a 5 or 6 D maglite? If a cheap DIY adapter from Ds to AA either 3 from each D or 4 wouldn't it be pretty reasonable?

i tried to light up a ROP with a cheap 8 cell holder and a dummy and it nearly melted the battery pack (the bulb just glowed very dim)
if you dont know what you are doing with loads of high current cells you are at best going to ruin the lot, at worst,

 

[Wincet]

Couldn't a cheap battery holder just be made out of metal tubes with contacts on the top and bottom? The batteries would have to be removed to charge them, but shouldn't it work?

 

[jimjones3630]

Tessaiga,

Mac made a 250 watt Mag mod that used this bulb.
http://www.candlepowerforums.com/vb/showthread.php?p=1949453#post1949453

As far as running it with 6 14500 LiIon cells, not going to fly. This bulb, even at its rated 250 watt output will be drawing over 10 amps at 24 volts.
-Rick

I ran this bulb on the bench and IIRC was close to 13A draw and flashed not much over 24V. A123 or Lipo deep cycle cells would also handle the load.

Jim

 

[Wincet]

Ok, I'm a little unclear can someone list me the possible power sources that can provide that amp draw?
​

 

[catman]

Not a mag host but have ran it in a Lightforce 240 Blitz handheld spotlight with one milwaukee V-28 batterypack in a little carrybag. Did not flash bulb. Should have about 15 min. runtime. V-28 uses 7 emoli batteries(lithium manganese,a safe chemistry) I have a milwaukee charger for the pack and let my batt rest all day. I also use 64663(36v 400watt 16000 lumens) with three more e-molies.:twothumbs