We were loosing a top beacon on a 300+ ft tower way too frequently. I asked the climber if there were any cracks, leaks etc in the dome glass. His positive response was "Yes there is!" We don't loose lamps, now. ----- Original Message ----- From: "Wayne Gudgel" <wayne.gudgel at kolnkgin.com> >... Due to vibration, > etc., our top beacon does not last long. >