These replaced my older sensors and worked great. Easy installation but the lights are upside down if you use the same brackets. I used some velcro and it worked great and the lights are on top just like my old ones.
As the garage door is the way I come /go in my day, when it broke last week, in the cold, I moderately panicked - - then my hubs found Preferred Doors! Even w/regular shipping it arrived quickly, & the part easily installed (thx hubs)! The email notifications were a godsend, tracking the hours til I could click my opener again! Thx Preferred Doors!
Came in a timely fashion, despite not being in stock. Put them up myself, saved over 300 bucks. (Installer wanted 400) I didn't like the website trying to make me get winding rods, for extra cost. I already have some.