I couldn't find a 12 volt LED floodlight with built-in PIR detector - it seems they don't exist. But I found this 12 volt PIR detector on eBay for about £6 and connected it to a 12 volt 10 watt LED floodlight.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
doing a good job
made a wooden railroad crossing light for my driveway.running on na 12 volt battery ,using 2 red tail lights to flash and having trouble finding a 12 volt sensor to activate the lights when a object passes by .. need some help on sensor and wiring .. can send a picture of crossing light fixture.
What is the price of PIR detector?
Any idea what CC chip they use in these 12V floods?
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Trying to source some to convert bayonet capacitive dropper lamps for 12V (yes I'm rearranging the LED strings into 3 series diodes sets across the CC supply). I bought some CC bucks to do the job but the boards are twice the size and need a voltage difference to function correctly. The chips in these 12V floods are able to CC when the voltage is trying to push too much current through the LEDs but do nothing and just leave full available current out with negligible Vdrop when the low supply voltage starts to dim the LEDs.
probably gave up working after a year or two at most open to the elements !
i bet that stuff gets flooded with rain.
12 Volt floodlights with PIRs are freely available
I bought one. Completely useless. Works in this video's circuit. But the switching happens in the negative. It does not switch the (+) output wire. That wire is always +12v. So I can not add it to my circuit where the switched (+) activates a 12v dc relay that is also (in parallel) supplied by another PIR. And of course it does not have an output timer. So it comes off and on. Off and On. Off and On. Get it? To make it waterproof, paint it with a black compound, like for sealing a pond. Water will get in through the PIR lens. anyhows.
You should look at electronic starters.
could you make a DIY floodlight video?
Great video, greetings from High Wycombe.
Hi Julian, I would like to ask you if there is some kind of control on PIR so you can manage time how long light will be on after detecting movement.
I think it was about 4-5 years ago, I purchased two screw-in LED floodlamps to replace the incandescent ones which were in my 10+ year-old motion-detector lights at the front door. They've been working flawlessly ever since.
Not worth the effort. Has six batteries at £ 60 gbp each, so that's £ 360 gbp ( $ 560 ) just for one spotlight.
Even if just one car battery ( which should be enough ) it's still 80 gbp ( $ 124 ).
Stop being a tight bugger and fit a 100 watt 240 volt light.