5Sets Magnetic Reed Switch, Magnetic Door Switch/Magnetic Contact Switch/Normally Open Closed NC NO Door Alarm Window Security, for DC 5V 12V 24V Light (Black-B31)

Works well

There are possibilities when winding magnet coils so much that you discover such wiring schematics to me a scheme to simply make a light bulb dim. —but they don’t— without a potentiometer. During these latter experiences as alternating current was becoming a new curriculum to advance in, vehicles still needed maintenance garages.Here’s the tricky part.You can make an exquisite door alarm notification for your inside personnel with this core item at its centerfold attention. You can make it light a bulb, or you can make it ring a bell. Dependent upon a mercy’s lift of luck, and labor, fully upon where you place it.Disclaimer:Drilling may be involved.

Will use them for my alarm for my RV in installing, have both open and closed pole positions on them. 5 stars because they are good quality, a bit pricey though.

Trigger is unreliable, triggers farther than normal 30mm-50mm due to weak internal magnets. Ok for doors, not windows.

Using as door switches for solar powered led strip lights in closets and cabinets.

It wasn't clear whether the wires were supposed to go under the screw head or under the square washer. The square washer spun with the turning screw since there was not a thick enough boss to hold it in place. Also the small boss didn't provide a guide for the wire while tightening. The do seem to function fine though.

22 of 25 were bad. Originally I thought the contacts were bad . I changed the power supply from old style with copper windings to a PCB power supply to test to see if that was the issue. As it turned out the change to a power supply with PCB resolved the problem . This message is updated so that if customers have the same issue will know how to resolve them.Please accept my regrets that I did not think of this before

A couple of these didn't work at all, others actually fell apart. Ones that did function and stayed together, only switched a couple of times, then locked into the closed position. Junk! I just threw them out (frustration) and will not buy again!

Work with both way NO or NC ...!

Items are of poor quality, we use these switches frequently and on many installs units are found to be defective, or work momentarily and stop working after. Operating voltage is well within the listed range (only powering small LEDs)

I used these switches on doors for an alarm system and due to the compact size they were easy to install working for the purpose I needed them.

The product was perfect for my application, I used it to control LED lights in several closets with bifold doors. The 24 volt LED strip was cut to length and the N/O switch was set at the end of the door. I did have one switch that seemed to stick internally and wouldn’t shut off unless you tapped it. I installed a new switch and it works good so far.