OK, you asked for it!

Regulated so it can use lithium batteries, so I don't have to carry extras along and so it doesn't dim out until the batteries are almost gone.

Three light levels, bright (night hiking), medium (in camp, cooking or washing dishes), low (reading in tent). The strobe for emergency signaling is nice, too.

Maybe a red filter that can be turned on and off so that, if I want, I can use the light without destroying night vision.

Nicely padded, comfortable head strap.

Easy on and off switch, but depressed so it won't get bumped on in my pack.

And, of course, no more than 0.5 ounce total weight including batteries.

I can dream, can't I?