I have a door from utility room into my garage (in which my bike resides - to keep this on-topic). The garage has a couple of fluorescent tubes operated by a regular switch on the wall. The door opens "into" the garage. I am an impatient sod - when I flick the light switches, I want instant illumination but with the tubes, there is a delay while they flicker into life. It struck me that it'd be really rather nice if I could rig up another light which would be automatically switched on/off as the door is opened/closed. And as I keep my beer in there in winter it really is a fridge, isn't it... Anyone got anything similar (no, not the fridge) or do I just head off to Maplin and browse the swicthes there? It could be as simple as a switch mounted above the door with a lever that is tripped by the top edge of the door. -- jeremy '01 Triumph Sprint ST in green _______________________________________ jeremy0505 at gmail.com
Ikea used to make door switches on some of their products. Although you might consider something like http://cgi.ebay.co.uk/New-PIR-Globe...ryZ94941QQssPageNameZWDVWQQrdZ1QQcmdZViewItem which will give you the necessary illumination until the main lighting kicks in
Jeremy wrote Slicker to get a burglar alarm type magnetic switch (to operate a relay to turn on the mains) and screw a magnet on the door. Or, keeping with the burglar alarm theme: one of them motion sensor devices what is designed to turn on the mains driven infra red lights so you can film the scrotes. All the technology you need in one box that is.
Thanks - I'll take a look later. -- jeremy '01 Triumph Sprint ST in green _______________________________________ jeremy0505 at gmail.com
You can get a PIR activated floodlight for under a tenner - should do the job nicely. I've just stuck one in my garage as it happens, giving me a total of four PIR activated devices in there. If you can't catch the fuckers, irradiate them. -- Krusty. http://www.muddystuff.co.uk http://www.muddystuff.us Off-road classifieds '02 MV Senna '96 Tiger '79 Fantic 250
The message <> Magnetically-operated reed switch which you let into the upright, and the magnet into the door. Will need to activate a relay, as AC mains would probably just arc across the gap when it breaks. Obtainable from any burglar-alarm stockist. (and Maplin)
Reed switch in the door frame triggering a DIN mounted relay in a small mounting box. Or, **** all that, just get a single PIR and use it to switch on a 100 watt bulb.
Jeremy wrote : In my garage I have a PIR operated flourescent fitting, one of the eight in there. As PIR units by themselves are rather expensive, I used one removed from a PIR halogen flood light. Open the main front door or the side entrance and the light comes on after a small delay, assuming the garage is in darkness. It saved me some wiring, plus the light goes out if the door is left open garage unoccupied. Walk/drive in and it goes back on. No need to put up with the delay, if you use a fitting with an electronic ballast, or you could use a bulb instead.
Move the light switch from inside the garage to the near end of the utility room. Flick the switch as you go past, and by the time you've got the door open the light'll be on.
Could you use mains-driven UV lights to make it hard to see[1] and give them a sun-tan to help with the identification? [1] When I've looked at UV lights they seem to be bright without being bright, IYSWIM. Enough of them would make it very hard to see if you're used to a very dark room.
Bits of spring-loaded 2x4 covered in nails & mounted at head height have a similar effect, albeit a tad more permanent. -- Krusty. http://www.muddystuff.co.uk http://www.muddystuff.us Off-road classifieds '02 MV Senna '96 Tiger '79 Fantic 250
<g> -- jeremy '01 Triumph Sprint ST in green _______________________________________ jeremy0505 at gmail.com
Not quite getting your banter, old chap. The point is exactly the opposite. UV lights make your iris contract, like a properly visible light source would. Thus, it makes it "feel" like there's a bright light in front of you (i.e. makes you squint), even though you can't see the light as it's UV. Matey, who's snuck into the dark garage, sets off the PIR which turns on the UV light array. His eyes are used to the dark, so he'll find a certain amount of discomfort of unknown source when the UV hits him. This would only work if there's no UV-reactive things knocking about in the garage, as that would provide enough normal light to illuminate the room.