the title says it all, i would like to see different designs that could be built or are built already that will provide me with alot of light.

something like mac's 7. not sure if someone else has built one,
or 6 diodes or even 5 as download's multisink would carry.

multi-brightness would be nice but not a big deal, but decent runtime
and form factor should remain small, 1c, 2c, 3c, or 1d, 2d...

would prefer light with throw, maybe smooth reflectors ?

thanks million