Ivar- Not disputing that there are led-based units out there that throw amazing amounts of light. My point was only that *in the MR16 form factor* you get more lumens from the halogen (at 10-14 lumens per watt, 35 watts, that's 350-490 lumens) than from the led (at 15-19 lumens per watt but only 3 watts, thats' only 45-57 lumens).
I think that "several thousand lumens" is probably manufacturing mis-statement of some led specs (I read about this just last night). LED efficiency peaks out at roughly 20 lumens/watt. If "several" means 3, than 3000 lumens at 20 lumens/watt implies 600 watts of power on that helmet. Not impossible, but highly unlikely. Several thousand candelas, that's possible, but that's a completely different unit!
Here's what I've done, for those that give a crap: I ordered the Kurakyn silver bullets in both large and small, and the Vizor driving lights, all from Dennis Kirk. When they arrive I'll hook 'em all up side by side and see how they look on the bike, what the beam patterns are like, etc. Then I'll send at least two of the sets back to DK. The Lazer Star product looks good, but it has a sort of standoff mount that makes it protrude pretty far from the bracket (see the pic of D9's bike), and I'm hoping to avoid that.
Once I have a unit I like, I'll experiment with LED vs. halogen bulbs, just to see - I definitely hope that LED would be good enough because I like the looooong life!!
Also going to add an Eastern Beaver (love that name!) relay between my battery and my existing fuse block, and plan on hooking the lights in so that they are on whenever the ignition switch is on.
Thanks for the input!