need shader for blinking light

[Grasshopper]

im trying to find a specific shader for lights that blink . Much like you would see on a tower with the red lights . I need it to fade slightly off then fade back in . does anyone have something like this lying around ?
I may have over looked it in the Q3A shader manual . its so extensive

[C.Brutail]

keyword: animmap

Look at eg. jumppads, how it's done. You might need some texture editing though.

[Grasshopper]

funny you came to the rescue . i am aactually trying to use your flares from your repository . those lights have the effect i want when they are on . thanx for the heads up . i ddnt think of those earlier