Assuming your warning display works for everything but the headlights I would guess that the headlamp sensor is malfunctioning. That's the little box mounted on the right fenderwell at the front immediately behind the washer fluid tank.
Now on the brightness issue, if they are kinda a dim yellow color as opposed to bright white, I would suspect a bad ground. Check your ground wires for good clean, tight, connections.
Hope this helps.
Bob A.
> On my 280ZX 81 when you hit that check thing
> or after you start the car it always blinks
> headlights...

my headlights are both
> working so i don't know whats up anyone have
> a clue? and how can i make my front lights
> brighter ? do i buy a new light bulb thing
> or change the whole thing? since you guys
> are on this topic
> thanks
> yuichi