In article ,
Johnny B Good wrote:
On Sun, 22 Oct 2017 01:28:42 +0100, John Rumm wrote:

====snip====

I found the filament style 60W equiv lamps
to be very good a true match for light output and a pretty good CRI.

That'll be on account the 806Lm lamps "Wattage" rating is based on the
more efficient American 120v 750 hour tungsten filament lamp type than
on our less efficient UK 240v 1000 hour lamp type.

It's taken quite a few years longer than promised by Cree but we're
finally seeing LED lamps with efficiencies above the best on offer of
81Lm per watt of the past five years now raised to somewhere in the
region of 120 to 130Lm per watt.

I'd think most know an LED is more efficient than tungsten. My problem is
buying one which says it is a 100 watt equivalent only to find it is not -
and noticeably so.

If I'm happy with a particular light level/quality, that's what I want of
any replacement, since it is the primary purpose of a light. Seems to me
many think saving money is the primary purpose of a light. In which case
leave it switched off. ;-)

--
*Hard work has a future payoff. Laziness pays off NOW.

Dave Plowman London SW
To e-mail, change noise into sound.