How fast are generic Radio Shack triacs for switching 110v 60Hz current = to...say...a 150Watt incandecsent light bulb. When the triac is enabled, where on the AC wave form will it turn on? = Anywhere? How about turning off, as I recall, the AC needs to cross zero for a = triac to turn off? Thanks for any help. I am in a real pickle here. Got caught BSing on a = forum and need to do some damage control. ; ) John -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.