This ActiveX control allows a programmer to send X10 commands using the Cm11a X10 interface. The following X10 commands can be sent; Lights on, Lights off, all off, on, off, dim and brighten with just one line of code. However this control doen't let the programmer know when the CM11a receives an X10 signal nor does it let a programmer download macros into the CM11a. If complete control over the X10 protocol and the CM11a is needed please try our X10 professional control.