LEXI Upgraded DC12V Electric Drop Bolt Lock, Fail Safe Mode with Adjustment Time Delay, Electric Mortise Lock for Door Access Control Silver

I tried to test this thing when I first opened the box, and had some trouble because the instructions are very limited. For my purposes, I want the unit to be unlocked when unpowered, and locked when powered. I was happy to see the unit had the bolt retracted in the box, so that seemed likely that it would do what I need. But I didn't know what I was going to do with four wires! So I started experimenting, and no matter what wire(s) I hooked up to which end of the 12V battery I was testing with, or which ones I touched together, I couldn't get the lock to operate. All I saw was a red light come on (when the red wire was attached to positive and the black to negative). I was beginning to think I've already fried the thing from hooking it up wrong when I finally found another review that mentioned a magnetic reed switch. It turns out red to + and black to - is all you need for wiring, but you ALSO need the other unwired box nearby. Then the lock bolt will deploy. This is a nice feature, but I wish I had known to expect it. Once I figured that out, it operates great from my 12V battery. I haven't mounted it to the door yet, but I don't expect any issues. I bought it for a door that has a dart board mounted to it. I have a dedicated spotlight for the dart board, turned on by a light switch, so I figured I might as well use the same switch to power a 12V DC adapter that will drive this latch. Turn on light to play darts, door locks automatically. If it saves one person from taking a dart to the face, it will be worth the little bit of time and money it took to install it.

This seller sold me a defective product. Wont reply when i ask for a return and refund.

This magnetic bolt system is exactly what I needed for a steel door that I had magnet based (magloc) door lock. With a few good pulls the door could overcome the magnetic lock due to the mass of the door and the lower power magnets. This system physically holds the door with a steel pin that drops into a receiver screwed to the door. All we needed to do is power the lock from our access control panel and it worked flawlessly. It even has a magnetic reed switch in the powered head so that power will not return to the unit unless the lower receiver is aligned under the unit. We'll get a few more of these now that we see how they perform.

So far works as advertised but I dont know what the white and yellow are for...

How do you wire this when all the instructions are in Chinese

Didn’t work well at all!