RFI: Brackenheath Energy Saving Floodlight with PIR
 

Has anyone had experience of the lamps/fittings:

http://www.all-lighting.co.uk/p6804/...t-with-pir.htm

It's the 36W spiral-wound CFL security light, with PIR detector and
timer.

The questions a

How well do they work in cold temperatures?

Is there a mechanism whereby they can be turned on for long periods,
such as an evening, as the timer only goes up to 7 minutes?

The maker's web site doesn't mention these aspects.

TIA

Terry

RFI: Brackenheath Energy Saving Floodlight with PIR
 

Terry Fields was thinking very hard :
It's the 36W spiral-wound CFL security light, with PIR detector and
timer.

How well do they work in cold temperatures?

Well, I'm finding the more recent CFL's and especially the few spiral
ones we have do warm up quicker than before, but they are still not
quite instant full light output. Maybe a few seconds, versus minutes of
the older ones.


Is there a mechanism whereby they can be turned on for long periods,
such as an evening, as the timer only goes up to 7 minutes?

I would expect them to do the usual 'few seconds to 15 minutes' via an
adjustment, plus being able to force them to stay on by turning the
supply off then straight back on - as this seems to be a standard
feature these days.

The maker's web site doesn't mention these aspects.

The web site has a 'contact form' and a phone number. Speak to them and
they should be able to provide the definative answers.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

RFI: Brackenheath Energy Saving Floodlight with PIR
 

In article ,
Terry Fields writes:

Has anyone had experience of the lamps/fittings:

http://www.all-lighting.co.uk/p6804/...t-with-pir.htm

It's the 36W spiral-wound CFL security light, with PIR detector and
timer.

I haven't used one, but I've seen them in the shops, and some thoughts...

They can't possibly be equivalent to a 300W halogen. Max achievable
would be 4 x 36W = 150W. Then you need to derate this because of the
reflector being small compared with the tube size (so the tube is
significantly shadowing it's reflection), and I would guess it's
probably equivalent to something less than 100W, say 80W.

Having said that, 80W [equivalent] outdoors is plenty for most home
applications, and 300W [equivalent] is way over the top.

Fluorescent tubes are not ideal for short switching, and hence PIR
use is not ideal. (If it is a cold cathode tube, then that wouldn't
be an issue, but it would be less efficient too.)

It sounds more like you want a dusk to dawn light than a PIR.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

RFI: Brackenheath Energy Saving Floodlight with PIR
 

"Terry Fields" wrote in message
...

Has anyone had experience of the lamps/fittings:

http://www.all-lighting.co.uk/p6804/...t-with-pir.htm

It's the 36W spiral-wound CFL security light, with PIR detector and
timer.

The questions a

How well do they work in cold temperatures?

Is there a mechanism whereby they can be turned on for long periods,
such as an evening, as the timer only goes up to 7 minutes?

The maker's web site doesn't mention these aspects.

I wouldn't buy one myself.
The none PIR version is £16 and you can add a separate PIR for £8.50 from
tool station.
Then you can put the PIR in a sensible place and the lamp in a sensible
place.
You can add more lamps too as they wont be as bright as a 300W halogen lamp.

You can add a switch across L1 and L2 on the PIR (usually at the lamp end
and use three core and earth to the PIR) to work as an on off or use the
built in off for a second and then on to keep it on.

B&Q had some much nicer flood lights with a 42W lamp in them but they were
£40 without the PIR and £51 with.

They also do a 70W halide lamp which is far brighter but not much use as a
security light as they don't instant start.