I just picked up a pair of Nightstalker 200 spotties, converted to HID.

The spread light seems fine but the supposed spot/pencil bean is crap. Rather than producing a beam, it throws out a halo of light with a huge black spot in the middle where the pencil beam of light should be. Needless to say, it's useless, my torch has a stronger beam.

Any ideas on why the spot light throws a halo and not a beam? I'm taking the lights back today but would like to be armed with some info to throw at the guy.

Cheers
Lon