RunLessWire 3-Way Battery-Free DIY Wireless Light Switch Kit 150ft RF Range Self-Powered by Kinetic Energy for Hallways & Stairways: 2 Remote Switches Control 1 5A On/Off Receiver – White

This avoids all the problems that cheaper units have.Notice that the receiver has a conduit type connection. This allows it to be connected outside a junction box without having exposed wires. Very desirable. Other units won't work from inside a junction box but can't be mounted outside a box without having exposed wires.It also has an outside antenna, so it receives from any direction. A problem with other units that are sensitive to the orientation of the receiver and what it's mounted to.The transmitters, the switch buttons, are exceptionally powerful and have no batteries. Those are issues with other units. Others won't turn on very time or off every time and are not forgiving of where they are mounted. When the batteries get weak they work even less well.I've tried others, this one works. It has everything it needs. No muss, no fuss, no work arounds.

We have an old home with plaster walls. That makes it hard to wire and re-wire lights. This product saved me a day of wiring by allowing me to place the receivers in hard wired sconces and tape the switch to the wall. It works great. The switch looks like one of our other switches. The lights respond immediately. These were really easy to install. Instructions were helpful.The receivers are large as others have said. I was able to screw one onto the back of one of my electrical boxes. The other barley fit into the other electrical box. So, if you have lots of wiring in a box or you can't get to the back of a box already installed, these might not work. In my case, I was installing the electrical boxes, so I was able to make it work.The only major critique is how pricey these are. I hesitate 4 or 5 stars but gave it 5 starts because they did solve a problem and a bunch of time.

I had a single switch controlling two ceiling fixtures and I wanted to add another switch on the opposite end of the room without tearing out my drywall ceiling, running surface mounted conduit on block walls, or fishing wires to wire a new three-way circuit. This kit was a great solution. I was honestly a bit skeptical that the remote switches would work reliably without batteries to supply power to the RF transmitter, but they function flawlessly. Installation was extremely easy, although I had some weird old existing wiring and fixtures to contend with. Included plates made for a professional looking install. Since I wasn't clear on this until I actually purchased, I'll add here that the rocker switches stay in a middle position and you just click momentarily down for off or up for on. This is unlike an ordinary mechanical three-way (two-switch) arrangement, where you often have to flip the switch down to turn on and up to turn off, and actually superior in my opinion. Installed a year and a half ago and it's still working perfectly. This kit isn't cheap, but the quality and performance are excellent, and I would have paid much more to have someone run the extra wiring necessary for conventional switches, so I figure I actually saved money and still got better results.

First of all, I am a retired radar systems engineer, and I am familiar with the RF frequency being used to switch this controller. I only recently installed the switches and associated controller, so I cannot claim knowledge of their reliability over time, but from what I have seen so far, as well as discussed with the Runlesswire company, I think that this switch/controller combo is great and very well thought out. On the negative side, let me say that attempting to install the switch and controller within the same box is tough. I had to add a small extension to the box. In my case this was an external box by my pool so it was no big deal. This outside box was metal, so the control signal was not about to get into the box from the remote switch without my adding a way for the antenna to be exposed. I added a short (2”) threaded PVC tube with end cap to extend the antenna, so this was another reason that I needed some room in the box to put the antenna in position. This is not required if using a plastic box. I wanted the remote switch up at my house and placed it in an existing box that had been used with the original remote switch, installed over 10 years ago using an older technology. The box was plastic, which was good, but it was next to the leader for the gutters, which deflected the signal away from the direction I wanted it to go. I solved the problem by placing metal foil on the opposite side of the box to redirect the signal. This worked great. Note that in order to get to the antenna on the box by the pool the signal had to go about 123 ft, including a bounce off the metal fence behind the pool back to that antenna on the opposite side of the pool. That all worked great, but I was concerned about having to replace a switch or controller at some later date, and discussed this with the company. While it is clear that the controller can be programmed to match a replacement switch, it is also possible to add multiple switches to the same controller, so it is not necessary to have all switches set to the same signal. They thought of many issues when designing this, so while this switch may appear expensive, you are getting your money’s worth!