PhotonWrangler said:It depends on several things -
- The design of the filament supports.
- How hot the lamp burns.
- The running hours on the lamp (older filaments are brittle).
- The distance from the filament to the bulb's envelope. If the filament touches the envelope while it's lit, it blows out.
Halogen lamps can blow out REALLY easy if they're vibrated while operating.
There are lamps that are designed for high vibration environments that have a ruggedized filament and support system. I think the G-E line is called "rough service" lamps.
well.. honestly... if your that concerned w/ bulbs being fragile.... just figure out an LED solution...Jasmes said:does a shock isolated bezel protect the bulb enough to be worth the money?
In my experience, probably. I use a M2 shock isolated bezel and a Z48 clicky on my C3. But, without any experimentation nor comparison to a standard "control" bezel or tail-switch in all of these drops, I'm hesitant to claim they necessarily saved my P90s. Yet, I definitely believe they do reduce bulb shock from both front and rear impacts, and in some cases perhaps they prevented filament damage that might have occured without them. During my ongoing collection of bezel nicks, the first P90 died during one of the first few drops, but after many more bezel-plants from inches to waist height impacting various surfaces (excluding concrete), the second P90 surprisingly still works fine. The M2 bezel and Z48 are worth the added cost to me because they have increased my confidence in the C3's shock resistance, thus dependability, and IMHO might have saved a few P90 LAs. Good luck.Jasmes said:does a shock isolated bezel protect the bulb enough to be worth the money?
LTXC^3 said:In my experience, probably. I use a M2 shock isolated bezel and a Z48 clicky on my C3. But, without any experimentation nor comparison to a standard "control" bezel or tail-switch in all of these drops, I'm hesitant to claim they necessarily saved my P90s. Yet, I definitely believe they do reduce bulb shock from both front and rear impacts, and in some cases perhaps they prevented filament damage that might have occured without them. During my ongoing collection of bezel nicks, the first P90 died during one of the first few drops, but after many more bezel-plants from inches to waist height impacting various surfaces (excluding concrete), the second P90 surprisingly still works fine. The M2 bezel and Z48 are worth the added cost to me because they have increased my confidence in the C3's shock resistance, thus dependability, and IMHO might have saved a few P90 LAs. Good luck.
Alec
dyyys1 said:Don't forget that the SF E2D is an incan and it's designed to strike things.
LTXC^3 said:Hey, Jasmes
SFs 2004 Illumination Tools catalog (pg.24) illustrates the term "strike" in the context SF uses in reference to their E2d Defender, M3, and others. It also explains shock isolated bezels. I assume the current catalog does too. It might be helpful.
I agree about your X5, amazing! Also, comparing it's LEDs to a P90/91 LA, you trade-off LED longivity and superior shock resistance for a much brighter incandescent, but with much less operational life span. I finally accepted carrying a spare P90 LA and batteries in a SC1 when hiking at night, along with a good backup LED similar to the X5. Good luck!
Alec
a99raptors said:I dropped two G2s and ruined both P60s on two separate occasions. Just fell down on concrete from 4 feet up. They still lighted up, but the hotspot had an ugly black hole in each.
Hey, JasmesJasmes said:Does it explain how the bezels work? I've always wondered, I should order one of those catalogs I guess.
LTXC^3 said:Hey, Jasmes
I edited my previous post. My mistake, the SF 2004 catalog only mentions shock isolated bezels on their special operations series, but does not explain how they work. Inside the M2 bezel, there is a soft black flexible spacer (silicone? rubber?) filling the 5 or 6 mm space between the interior lens retainer ring and the front of the Pxx lamp assembly, serving as a cushion between them. Check out www.surefire.com SF claims that weapons mounted SIBs enable their filaments to withstand repeated recoil. Lighthound stocks them. Good luck!
Alec