Using the whole idea of radio detection and ranging or RADAR for short you can detect movement, but in the main we don't want a waving tree setting them off, so we tend not to detect movement but a rapid change in the inferred detected, and only at night once daylight arrives it switches off, the passive inferred detector does have some draw backs, reverse my car up the drive and it will not be set off, no inferred from back of the car, so until I open the door it simply will not see me, so also easy enough for anyone to defeat it if they want to, it is not really to stop intruders, it is to stop people tripping over due to poor light be it intruder or wanted visitor.
For intruders you need active inferred not passive, broken beam and the like. Also cameras these do detect movement rather than the heat the body emits.
So with the standard PIR you have 4 adjustments possible:-
1) Amount of light.
2) Sensitivity.
3) Time delay switching off.
4) Masking so not triggered by central heating and like.
I have a Aldi unit at my home, and a
Screwfix unit at mothers house, I will compare. The Aldi unit got water in it very quickly, small hole drilled cured the problem, it also had a quartz tube, replaced with a LED of I seem to remember about 6W, the three trimmers were set for light, and sensitivity plus time delay so even with a busy street 20 foot away it only when on when in the drive, it came minus any cable and by time I had bought the cable and LED replacement for the tube was more expensive than the
Screwfix one, in spite being bought in a sale. The
Screwfix one was 10W brighter than the Aldi, and it came with a LED built in, it has not had a problem with water, and it came with a lead already attached. It also had two brackets so I could select the best one. However it had no sensitivity adjustment, masking the PIR with black insulation tape did do same job as sensitivity control, but not as easy to set up, in this case some 50 foot from a road with little traffic so even without the tape mask not really a problem, and the light spread is more even than the LED replacement for the quartz tube. It does a great job, lighting up the key safe so carers can get the key and put it away without using a torch which would highlight to anyone watching what they are doing.
Both lamps work, and both now once drain hole drilled in the Aldi one, have worked for over 6 months without problem. I would say once the drain hole was drilled the Aldi one was best, only 6W which was ample to see from car to door, and easy to set bit by bit until passing traffic did not trigger it, but
Screwfix one cost less by time cable included and so far away from road it did not need a careful setting of sensitivity.
Until I had installed them, I did not know which would be best, and it is unlikely anyone has bought multi Amazon units to be able to compare them, and it would depend where fitted if they worked well or not.
I feel security light is a poor name, they do not increase security, in fact they help the prospective bugler avoid any items which could injure him or her, they trigger so often with cats, one quickly stops looking when they turn on, calling them an access safety light would better describe what they do. I noted my cat was not worried if the light was on or off, it did however allow the odd mouse to escape when the light alerted it that the cat was close.
I also have a IP camera with built in inferred lamp, now this is very different, if I am willing to pay, it will record any intruders, and the light being inferred does not help the prospective bugler it just shows me what he is doing. So security lamps should be inferred not visible light, and because not visible with direct human eye you also need a camera so you can see the intruder from the comfort of your own armchair. I was told at collage you are not allowed to set a trap, however you can watch an intruder injure himself when he encounters some thing. So you can't dig a pit to catch intruder, but if you dig a pit to service your car, you can watch an intruder walk into it without warning him. At least that was law in 1970's when I went to collage.
So question has to be, why do you want the light?