Interesting thread.
I'd also like a few answers.
I have run 64657 in a FM 3" head with no damage, but only in 10-20 second bursts.
No damage...but I know this lamps has bubbled a FM 2" reflector, but that was on a 5 minute run; But that light had a bunch of seramic insulation in it to stop the heat travling down to the cells, so I guess that contained all the heat in the head
I stopped playing with the 64657 for a while till I can find a reflector to cope with it.
I know other components are at risk from heat...but I like to get all the weak links sorted, and the mirror is a big eak link in the chain ATM.
I'd realy like to know what lamps are on the safe side, and whats not.
I have run 64623 and 64633 for a few minutes at a time for years now no problem...but in a flashlight that runs for 5-7 minutes, its not a big deal.
Even ran a 64623 on 2 packs once for about 10 minutes with a cool down in the middle to change out pack.
That was on a Litho ( I assume reflector )
I'm assuming that mag 85's lamps are fine, as never heard of anything bad about then running for a total run....anymore and I cant say for certain, never run an '85 though.
100+W lamps aside...do the IRC lamps like the 65W run cooler than normal?? I'll go and look in a second.
I have chopped up an MR16 reflector and pulled off the lenze, out with the lamp ( well it broke up in bits) , and hacked of the bottom section (that houses the lamp with some glue/ compound,) with a meat cleaver....( bottom had to be removed as 64633 is to long..
I've run that glass "reflector" in a 15.6V, 13 cell, 2D for a 3-4 minutes...beam seemed OK..., but head got HOT...but thats cause the reflectors are semi heat transparent...no Idea if its better or worse than the 2" aluminium ones.
But the Alu ones are fine for this anyway...this was supposed to be for the 64657, but thats to long for the short (modded) MR16...ant tBH the MR16 is not quite right for the mag...
Id be interested in how hot the the 24V 150W lamps get, and if they can be run for extended lengths?
Its not beacuse I have to...but it would be nice to know where we stand...and have the option if needs must.
Here are a few bulbs to ponder:
64640
http://www.osram.com/_global/pdf/Pr...Voltage_without_reflector/64640%20HLX%20e.pdf
64641 bit low power but might be good
http://www.osram.com/_global/pdf/Pr...Voltage_without_reflector/64641%20HLX%20e.pdf
64642: Interesting
http://catalog.myosram.com/zb2b/b2b...ue&country=COM&language=EN&it_p=4050300992129
this looked V intersting IRC
600 hours service life. :devil:
http://www.osram.com/_global/pdf/Pr...owVoltage_without_reflector/64292%20XIR_e.pdf
Any others you can think of?