I'm looking for a source for a specialty tool that I call a light stick (may not be the proper name). It is used mainly by hard wired home security installers. After drilling a hole in a door header, with a extra long drill bit, through the top wall plate, you insert the "light stick" through the hole to be able to locate it in the attic space. Of course it has to be 2' - 3' long. I have made a search on the internet with no luck. Maybe my terminology is wrong but I hope someone here knows what I am looking for.