I've got an older Tiger line trailer I use to pull my backhoe.* It seems like the most inconvient times the taillights always stop working especially coming back from a job site at night.* About 3 months ago I purchased a set of wireless tow lights from PepBoys for 149.00 and put them behind the seat of my truck, just in case.** Well this past week coming back from a job (at night) the lights on my trailer started acting up.* I hooked up the wireless lights and man did they work nice.* They only took about 1 minute to hook up,* they are magnetic.* You can strap them on or use the magnetic mounts on the bottoms. All you have to do is plug the transmitter into your towing vehicles trailer wiring plug and then mount the lights on your trailer or what ever you are pulling.* The transmitter then sends the brake - turn signals* and* running lights information to the wireless tow lights.* If any of you ever have problems with your trailer lights, I would highly suggest having a set of these behind the seat of your truck.* I hope this helps someone else,* because I know I am not the only person with trailer light problems.. I also found these same wireless LED tow lights on the internet at:*** Store.uhaul.com* -* sears.com* -* JCWhitney.com* and* WirelessTowLights.com web sites for those of you who do not have a Pepboys close.