Update: Please go to my Post #38 in this thread, where I took closeup images of all my 1794 bulbs, and I believe shows evidence of manufacturer defects.
This is not intended to cast negative aspersions on Nite, FiveMega, or Carley (well maybe a bit on Carley). Rather this is a public safety warning when inserting/removing these bulbs.
This has never happened to me with any of the incan bulbs I have been dealing with over the last few years, including all those I intentionally overdrove in my destructive testing thread. I know almost all halogen bulbs are under various amounts of high pressure, but after working with at least 250-300 bulbs, I let my guard down, and it scared me because of what could have happened. I regard this as a Carley defect, and just "one of those things."
Anyway, I was holding with a Kleenex and inserting one of the new batch of CL-1794 bulbs that Nite is generously selling here into FM's D26 holder. The pins were perfectly aligned with FM's holder, and as I pushed down (not hard), I noticed a very tiny side piece of the glass stem split off to the outside when it was about 80% seated.
I set it sideways (bulb not touching) on corkboard, and turned over to my table behind me to get a magnifying lens. No more than 3 seconds after setting it down there was a loud POP explosion. It was about as loud as a ladyfinger firecracker, or capgun going off.
I felt pieces of the glass bulb hit me in the back, and back of my head about 3 feet away, so this was a significant amount of force. I was not injured in any way.
My concern for others of course is to make sure you ALWAYS WEAR EYE PROTECTION when inserting/removing these bulbs, as had I been facing or looking up close without eye protection, it would potentially have been a disaster. Here are two shots of the 'exploded' bulb. Interestingly, you can see the filament is still connected to the posts.
This is not intended to cast negative aspersions on Nite, FiveMega, or Carley (well maybe a bit on Carley). Rather this is a public safety warning when inserting/removing these bulbs.
This has never happened to me with any of the incan bulbs I have been dealing with over the last few years, including all those I intentionally overdrove in my destructive testing thread. I know almost all halogen bulbs are under various amounts of high pressure, but after working with at least 250-300 bulbs, I let my guard down, and it scared me because of what could have happened. I regard this as a Carley defect, and just "one of those things."
Anyway, I was holding with a Kleenex and inserting one of the new batch of CL-1794 bulbs that Nite is generously selling here into FM's D26 holder. The pins were perfectly aligned with FM's holder, and as I pushed down (not hard), I noticed a very tiny side piece of the glass stem split off to the outside when it was about 80% seated.
I set it sideways (bulb not touching) on corkboard, and turned over to my table behind me to get a magnifying lens. No more than 3 seconds after setting it down there was a loud POP explosion. It was about as loud as a ladyfinger firecracker, or capgun going off.
I felt pieces of the glass bulb hit me in the back, and back of my head about 3 feet away, so this was a significant amount of force. I was not injured in any way.
My concern for others of course is to make sure you ALWAYS WEAR EYE PROTECTION when inserting/removing these bulbs, as had I been facing or looking up close without eye protection, it would potentially have been a disaster. Here are two shots of the 'exploded' bulb. Interestingly, you can see the filament is still connected to the posts.
Last edited:
oo:
