Has anyone yet seen a headlamp with a REGULATED CREE bulb?

Since the CREE bulbs are brighter than Luxeon bulbs & use less power I've been waiting for a good company like Princeton Tec to make one with regulated circuitry (to keep the brightness steady over most of the battery life). Ideally it would have at least 3 brightness levels plus a flashing mode.

Seems proper regulated circuitry is beyond those Frenchies that make Petzl so maybe Black Diamond or Brunton could also make one as well.

I have a small Coleman pop-up Cree LED lantern for home and car camping use. It's VERY bright for its size. Coleman comes up with fairly well thought out stuff.

Eric
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"There are no comfortable backpacks. Some are just less uncomfortable than others."