I recently installed a $20 motion sensing flood light that advertised
a 70 foot sensitivity range. It turned out to be more like 20 feet
(at best). I'm beginning to suspect that you take the advertised
range, multiply it by the price and divide by 100 to get the actual
If anyone has good experiences with motion sensing flood lights, how
much did they cost and what brand were they?
Do you want it to go on when people just walk by the house, but are still on
the public sidewalk or in the street? If yes, otherwise innocent people out
for a nice walk at night will want to cause you bodily harm.
And, don't aim the damned light so it blinds people in the street. The
person you blind may be a cop who arrives to help you one night.
Sorry I can't help with brand names & quality.
Yup, I have it at maximum sensitivity. At minimum sensitivity, you
have to get within inches of the sensor. It's a pathetic joke.
To the other responder, I have plenty of area to cover with no danger
of blinding or annoying anyone.
Wait until summer. They tend to be less sensitive when cold. I do have
one neighbor who has lights on their garage that will pick me up early in
the morning below freezing as I jog past early in the morning on the
opposite side of the street and his garage is at least 40 or 50 feet from
the street. My guess is the range they state are under ideal conditions.
They're -more- sensitive when it's cold outside. Greater difference between
body temp/engine temp & ambient air temp.
In the summer, when it's 90 outside, you can walk right up to it & it
probably won't see you until you're 5 feet away.
One would think that should be the case, but at least for some the
opposite is true. Of course if you can keep the sensor warm, then it might
be the other way around. Also in winter the likely target (a human) may
well be covered with layers of insulating clothing so they may in fact be
far colder than they would appear in summer and even show less difference
from the background than they would in the summer.
I have about 20 installed insirde and outside my house. I have mostly
the Heath/Zenith Home Depot kind but I also have some Reagent from
Lowes that I don't like as well (much less sensitive). I also have a
couple no name Kmart sensors that won't die.
Outside in the sun these things only last a year or two in direct suyn
(south exposure), in the shade they last a lot longer. In the house
and garage they seem to last forever. Loss of sensitivity is the first
thing that shows up when they get "sunburned".
I also have some of the "device" type occupancy sensors inside and
they have never failed.
As soon as you get over the idea that these are only for "Stalag 17"
style spotlights and that you can use them for normal lighting you can
end up with a lot of them. Except for task lighting I seldom ever
touch a light switch and the lights follow me wherever I go.
The difference betweem "motion sensor" and "occupancy sensor" is the
occupancy sensor restarts the clock whenever it sees motion. The
motion sensor will time out based on the first motion and need to be
BTW if the temp is in the high 90s you can do the hokey pokey right in
front of one and they won't pop.
Could be the way you have them mounted. All motion sensors are almost
completely blind when it comes to motion headed directly toward the sensor.
However, it'll spot you in a New Yawk second if the motion is -across- it's
field of view.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.