On 21/04/2018 16:24, Dave Plowman (News) wrote:
In article ,
ARW wrote:
On 21/04/2018 13:41, Dave Plowman (News) wrote:

Despite the claims for long life, I'm not convinced replacement LED bulbs
with built in electronics do all last the claimed life except under lab
conditions.


They are getting better. I now only fit LED (unless the spec says
different).

I'd hope they are. But in this case with an existing fitting, I'd bet a
decent electronic ballast and tube will last longer. Added benefit is you
already know how much light it gives (and the quality of that light),
unlike with LEDs where you have to guess until you've fitted them.


Some of the better manufactures do have proper spec sheets for their
LEDs. Most of what I fit in NHS, schools offices etc have already been
designed by the manufacturer to meet a certain lighting level.

That brings us back to the quality of light over time. The LEDs I have
fitted do not dim as time passes like fluorescents do. Mind you a bit of
a wipe with a cloth could help out some of the lights.

Now if only street light LEDs were yellow............

--
Adam