Lighting question
 

In message , Graham.
writes


"Bill Wright" wrote in message
...
I'm going to fit two lights in the same room. The problem is they
don't have line and neutral marked. If I get one the wrong way
round will they be in antiphase, and will this make the room get
darker when I turn the light on?

This is UK-DIY isn't it? I posted this message earlier but it didn't appear.

Bill


Tesco were doing an offer of 11W CFL candle bulbs for 10p, so I got a
basket full
for the hall chandeliers here at Graham Mansions.
I kid you not, when you turn them on the room gets darker!

Some time ago, works colleague of mine came up with the theory that
lights actually worked by sucking in the darkness. [I've recently seen a
similar explanation on the internet, so it must be true.]

It is a well-known fact that CFL lamps don't work as well as
incandescent. As the Americans might say "CFL sucks" - but obviously not
hard enough.
--
Ian

Lighting question
 

"j r powell" wrote in message ...

"Alan" wrote in message ...

Many people don't realise that when they fit three bulbs two can be in phase and one can be out of phase. Simply by swapping the
phase of the one bulb they could get 66% more light.

ha ha etc...
On a vaguely-related note though, in the utility room at my parents' house the mains hum from the fluorescent light used to cancel
out the mains hum from the central heating pump, to the point where the room became virtually silent when both were operating.

Does it work for wifes??

--
Graham.

%Profound_observation%

Lighting question
 

On 08/10/2010 23:00, Alan wrote:
In message , Bill Wright
wrote
I'm going to fit two lights in the same room. The problem is they
don't have line and neutral marked. If I get one the wrong way round
will they be in antiphase, and will this make the room get darker when
I turn the light on?

Many people don't realise that when they fit three bulbs two can be in
phase and one can be out of phase. Simply by swapping the phase of the
one bulb they could get 66% more light.


Be a good wheeze to send that one around the greenwash facts
distribution network and then publicly ridicule the first council that
places a large order for step ladders and ladder safety courses.

Could provide employment though ...

--
Adrian C

Lighting question
 

On a vaguely-related note though, in the utility room at my parents'
house the mains hum from the fluorescent light used to cancel
out the mains hum from the central heating pump, to the point where the
room became virtually silent when both were operating.

Does it work for wifes??


It might, but you need both turn-on in the same room

O.G.

Lighting question
 

On Sat, 09 Oct 2010 12:02:53 +0200, Martin wrote:
On Sat, 09 Oct 2010 10:17:37 +0100, Mark Carver
wrote:

Martin wrote:

According to a Dutch CA test report Ikea's CFL are both best and cheapest.

Got them in our house, they're certainly the most attractive (read 'female
friendly' ! )

The sort that take minutes to warm up seem to be obsolete junk that somebody is
dumping in UK.

Considering the relative costs of CFLs in Britain (from 10p a pop) with
the cost in France / Spain etc (€3+, no discounts) if I was going to
sell a load off, I'd do it elsewhere for €2, rather than try and dump
them in a country where the price is already very low.

--
http://www.thisreallyismyhost.99k.or...0943457284.php

Lighting question
 

Max Demian wrote:

You've got it the wrong way round. It's CFLs that contain mercury (and if
one blows up you are supposed to abandon the house and call in a
decontamination team).

Remind me how long fluorescent tubes have been in use domestically in the UK ?


--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

Lighting question
 

Ah, I've been meaning to ask a question about these sell your surplus
electric back to the grid ideas. I wonder if you put a patch lead between
two properties and put up some fake solar panels and wind turbines if both
houses could sell each others back to different bill constructors and save
oodles of dosh?

Brian

--
Brian Gaff -
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Martin" wrote in message
...
On Sat, 9 Oct 2010 09:35:11 +0100, "Brian Gaff"
wrote:

Well I guess as there are now so many repeats on the tv, its only wright
that we get them here as well.
Another question, if the house has power line internet adaptors, do the
lights actually flicker as you download?

Only when SWMBO mother in the attic bedroom doesn't pedal fast enough
--

Martin

Lighting question
 

On Sat, 9 Oct 2010 14:10:25 +0100, "Brian Gaff"
wrote:

Ah, I've been meaning to ask a question about these sell your surplus
electric back to the grid ideas. I wonder if you put a patch lead between
two properties and put up some fake solar panels and wind turbines if both
houses could sell each others back to different bill constructors and save
oodles of dosh?

I suspect that there might be a meter measuring not just the current but
the direction of the current to and from a house.

--
Peter Duncanson
(in uk.tech.digital-tv)

Lighting question
 

Alan wrote:

In my experience these higher power LEDs only have a working life of a
few thousand hours unless you can keep the semiconductor junction
temperature cool. The average light fitting will not allow them to run
cool.

But a few thousand hours is a long time, compared with the 1000 hours
of a typical tungsten lamp, and the oft-claimed but rarely achieved
8000 hours of a CFL.

There are 8760 hours in a year, so you're probably looking at - what,
eight years? - for a bulb lit for two hours per day in the summer and
six hours per day in the winter.

I guess it all depends on the initial purchase cost as to whether
that's an acceptable lifespan.

SteveT

Lighting question
 

In message , Mark Carver
writes
Max Demian wrote:

You've got it the wrong way round. It's CFLs that contain mercury
(and if one blows up you are supposed to abandon the house and call
in a decontamination team).

Remind me how long fluorescent tubes have been in use domestically in the UK ?

I first started using CFLs four or five (?) years ago. Most of the
lights in the house (those which can be CFLs) are now CFLs. I've never
had to replace one.
--
Ian