any saving must be good, so i am lead to believe the big lamps at the harbour cost a fortune for bulbs.
street lamps seem to have a long life, we have a few near our home, and they must be 5/6 years old at least.
it must be better to change over to led when they come to the end of their life.
maybe under the banner of works on victoria avenue , should we not see a test scheme of led lighting , the jec could monitor power consumption and life span, plus degredation