Installing a motion sensor into a 12v lighting system

jiminwatford Posted a lot Posts: 2,603	Installing a motion sensor into a 12v lighting system jiminwatford @jiminwatford
	Aug 18, 2016 21:59:34 GMT Select Post Deselect Post Link to Post Back to Top
	At the moment i have a setup like this They work ok but i find i spend a while squinting in the dim light then maybe decide to turn the light on. Then i probably forget to turn them off If they came on as i walked near and then off it would be very handy These are the type of LEDs i'm using www.ebay.co.uk/itm/3-1W-MR16-GU5-3-LED-Light-Bulb-3W-12V-Warm-White-/222111427856?hash=item33b6df6d10:g:MLkAAOSwvg9XfjV0 This is what it's like in normal light No exactly dark but when you're there it can be hard to see in detail So obviously lights make it better it's a faff turning them on and off
	Last Edit: Aug 18, 2016 22:34:57 GMT by jiminwatford

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composimmonite Posted a lot Posts: 4,681	Installing a motion sensor into a 12v lighting system composimmonite @composimmonite
	Aug 19, 2016 7:55:13 GMT Select Post Deselect Post Link to Post Back to Top
	Motion sensors can switch off lights if you are standing still so you'll need one with a decent time on period. I've got 12v versions from China and quality seems no worse than a mains version from anywhere else. However remember they need power 100% of the time so are a constant drain on the battery. What about a pneumatic switch ? The type you press to switch on and it then slowly bleeds air back (adjustable) in so after a while switch goes off ?
	Last Edit: Aug 19, 2016 7:57:38 GMT by composimmonite

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MiataMark Club Retro Rides Member Posts: 2,963 Club RR Member Number: 29	Installing a motion sensor into a 12v lighting system MiataMark @garra Club Retro Rides Member 29
	Aug 19, 2016 8:13:45 GMT Select Post Deselect Post Link to Post Back to Top
	Or use a photo sensor so they go on when it's dark, with a switch by/on the door. So the system comes live as you open the door, lights come on if it's dark and then the system goes off when you go back out. (No idea of this would work ion practice but sounds plausible) With a motion detector you may find the light going out at a critical time and you end up flailing your arms around to get them back on. Been in a few office toilets like that!
	1990 Mazda MX-5 2012 BMW 118i (170bhp) - white appliance 2011 Land Rover Freelander 2 TD4 ~~2003 Land Rover Discovery II TD5~~ ~~2007 Alfa Romeo 159 Sportwagon JTDm~~

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