Re: Security Lighting

you'll find both mercury vapour and sodium lights both have an unacceptable warm up time for pir controlled lighting. so tungston and halogen have to be the way to go.
loz

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deterrent than the PIR floodlights. You can get some nice compact fluorescent outdoor fittings, probably cost less to run continuously than a 500W flood turning on every time someone's cat walks past.
--
Tim Mitchell

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Owain wrote:

That could be fun. You're sat there watching a film and it gets to the part where the killer is about to be revealed, they draw back their mask and slowly turn round to reveal.....mother-in-law walking up the garden path.
--
James...
http://www.jameshart.co.uk /
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Then don't fit PIR controlled lights. I've yet to see a PIR installation that didn't scream "PIR installation" at me. Usually because you can hear them click on and off and they actuate whenever anybody is in a tightly defined area then click off quickly afterwards. It doesn't take much thought to tiptoe around probing the area of coverage. And they are a really clear signal that the owners of the house are probably out.
Lights set to operate using a timer and a photocell work much better IMO. If they are coupled with some interior lights also on a timer then it's very difficult to tell if the house is occupied or not.
--
Mathematicians, please don't drink and derive.

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The simple answer is don't. PIR floodlights should be banned, especially facing a public road.
Christian.
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Better solution, a few 9W low energy bulkhead lamps on a photocell. You don't need many, as they give out a good light and just a little light goes a long way outside at night.
PIR operated lights are good if you have a security guard on patrol. The lights going on will attract the attention of the guard from quite some distance away. However, as a deterrent, an evenly lit space, with no dark corners to hide in, is better.
If you put one bulkhead light each side of a ground floor window that is usually dark at night, it will also make it difficult for anyone outside to tell if they are being watched from the window. Another way, which I use in my garden, is to light the plants, so that anyone moving around the garden will be sillouetted against the light.
Colin Bignell
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a year to run on dusk till dawn.
Adam
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Agree with all that's been said about the el cheapo 500 watt PIR halogens.
I removed ours which was fitted by the last owner (and made it impossible to drive into the garage without sunglasses!) and fitted two 11 watt florescent coach lamps. The light output is obviously lower but they are on a timer and maintain an adequate & welcoming light for less running costs than the flashing halogen. My neighbour asked me to fit some for her, and I've done the same around the back garden with 3 foot post lanterns from Wickes. These look superb in an otherwise pitch black garden and make the wife feel safer!
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I found some very good value modern style post lights at Makro cash & carry. The 600mm version (max 11W) costing about 12, compared with about 30 for the identical lights from a retail lighting shop.
Colin Bignell
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