SYLVANIA Mercury Vapor lamps are designed primarily for use in general lighting applications where good efficiency and long life are desired with moderate color rendering requirements.
Rated 5 out of 5 by Jackofalltrades Much brighter than the existing lamps were
If your existing mercury vapor lamps are over five years you might want to consider replacement to make sure you're are getting all of the light you are paying for. These are so might brighter than the ones they replaced. Same electric power usage.
June 13, 2011
Sylvania Mercury Vapor lamps are designed primarily for use in
general lighting applications where good efficiency and long
life are desired with moderate color rendering requirements.