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Author Topic: Are NOS Xenon Bulbs Still 'OK' To Use? Jim Cassedy Phenomenal Film Handler Posts: 1661 From: San Francisco, CA Registered: Dec 2006 posted 11-21-2010 11:14 AM                     I recently found a stash of brand new, but never used, 4K xenon bulbs. They're sill in the original boxes, and the seals on all the boxes, except for the one I opened to inspect, are all unbroken. They are from a major manufacturer. As near as I can tell, these have been sitting around, undisturbed, for between 8-10 years. So, my question is: Are these still good to use? Do the bulb seals deteriorate over time in storage? I'm considering using them as "emergency spares" -Thanks-  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 11-21-2010 12:15 PM                     look closely at the seals if they still look good give them a shot you may find that they will not last as long just because they have and pressure related stress for a long time  |  IP: Logged Marin Zorica Jedi Master Film Handler Posts: 671 From: Biograd na Moru, Croatia Registered: May 2003 posted 11-21-2010 12:38 PM                     I had some NOS vertical lamps from Osram, stock was back from 1983 or so....did use them and they work without problems.  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 11-21-2010 12:59 PM                        Osram warranty is good forever as far as oldness goes. Christie is 5 years. Others; your mileage will vary. My knowledge base is Osram/Christie. I have never seen deterioration due to age, only hours used. Louis  |  IP: Logged Tony Bandiera Jr Film God Posts: 3067 From: Moreland Idaho Registered: Apr 2004 posted 11-22-2010 09:13 PM                     quote: Louis Bornwasser Osram warranty is good forever as far as oldness goes. Christie is 5 years. Others; your mileage will vary. My knowledge base is Osram/Christie. I have never seen deterioration due to age, only hours used. Louis So I wonder if my 13 year old Christie 1.6k spares at UC Irvine are still good?  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 11-22-2010 09:45 PM                     The oldest lamp I ever put into use was fomr the mid 1960's. It ran just fine... Main thing to do here is carefully inspect the lamp... as though it was going into a digital projector with an 8,000.00 glass reflector! Mark  |  IP: Logged

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