Anyone heard of these or used them? http://www.abtwireless.com/index.html Some company is writing me about a sale that is ending on these soon. They are trying to sell me an ABT Demo Kit, which includes the receiver, three types of transmitters, wireless motion sensor, wireless photo cell, and a digital programmer. All this material is normally priced at $450.00 but for this promotion it is priced at $299.00. I'm just trying to understand what all this stuff does and what application I would need it for. I'm also a little confused on how they work. I mean I understand what a wireless motion sensor would be good for and why you might need a wireless photo cell. But do these systems (like the remote transmitter and the motion sensor) make the lights come on even outside of the normal times that an outdoor lighting system was set to come on? How would that work? If I have a timer installed inside the transformer, and all the power for the transformer is going THROUGH that timer, than how can I turn on the lights at, say, 3:30 a.m. using the wireless motion sensor when the transformer timer is set to turn off at midnight. I guess I'm just trying to figure out how this stuff would be beneficial and why I would need a demo kit for any of this.