From: rmowery42@charter.net   
      
   In article <04d821b3-e5f9-44dd-b218-618957b69918n@googlegroups.com>,   
   JERONI.PAUL@terra.es says...   
   >   
   > Adrian Caspersz wrote:   
   > > LED tubes internally are wired to the supply at one end, the other end   
   > > is made as a short circuit - so that the LED tube can be used as a plug   
   > > and play for a florescent tube if the starter (and ballast) is also   
   > > replaced with a short.   
   >   
   > Some led tubes are designed to work with a magnetic ballast in circuit so   
   they do not need rewiring. I consider that a safe approach since the   
   tombstones are the same, a normal flurescent tube could be installed in the   
   future. I have never seen a    
   magnetic ballast fail.   
   >   
   >   
      
   I have seen lots of them fail.  However this in buildings that have   
   hundreds if not thousands of them.  Replaced lots of them over the   
   years.   
      
   The LED replacements did not come ito use before I retired.  The   
   elecrtronics were not in use for too many years before I retired so can   
   not coment on their lifetime.   
      
   At home when the tubes went out I replaced them with direct wired LEDs.   
      
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