motion sensor security lights

This is the place for any magazine-related discussions that don't fit in any of the column discussion boards below.
Post Reply
User avatar
dacflyer
Posts: 4558
Joined: Fri Feb 08, 2002 1:01 am
Location: USA / North Carolina / Fayetteville
Contact:

motion sensor security lights

Post by dacflyer » Sat Apr 27, 2013 10:20 am

i have several of these light around my property. they have worked very well over the years.
i have had a few models that were pure crap ( i'll never use anything by Regent lighting or Cooper )
anyway my question is.. i have had some light sensors start to go bad. the plastic lens covering the PIR sensor starts to go bad, cracking , clouding etc.
i was thinking to use normal plastic, but i have noticed that the old lenses have multiple areas of small fresnels i am guessing it is to make it easier to pick up movement signatures.
but i cannot find anything to replace this material.. am i just going to have to replace the whole unit ?
or does anyone know where i might find new lens material ?

Dean Huster
Posts: 1263
Joined: Wed Dec 05, 2001 1:01 am
Location: Harviell, MO (Poplar Bluff area)
Contact:

Re: motion sensor security lights

Post by Dean Huster » Sat Apr 27, 2013 7:27 pm

Generally, the lens portion is to determine where the detection will be the greatest so that a cat or dog will not trip it but a human will. I'll bet that a new light will be nearly as cheap as a replacement lens which may not be available anyway. Lighting products tend to have a very short "lifetime" regarding style. Run through your big box store and you see that virtually none of the lighting models are available much over two years in a row.
Dean Huster, Electronics Curmudgeon
Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines).

R.I.P.

User avatar
Externet
Posts: 1861
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Re: motion sensor security lights

Post by Externet » Sun Apr 28, 2013 6:20 am

- Abolish the deciBel ! -

User avatar
dacflyer
Posts: 4558
Joined: Fri Feb 08, 2002 1:01 am
Location: USA / North Carolina / Fayetteville
Contact:

Re: motion sensor security lights

Post by dacflyer » Sun Apr 28, 2013 1:58 pm

wow. thanks for the links.. the 1st one is the best.
i'll do some measuring and see what will match the best.. otherwise it till go in the trash.
thanx..

Post Reply

Who is online

Users browsing this forum: No registered users and 42 guests