The first issue light canons had lots of defective bulbs (I saw two brand new ones fail on their first dive late last fall). My bet is that if you pursue this with UK you should be able to send your bad bulb, which, based on the purchase date, I'd bet is one of the bad lot, back to 'em and get a replacement. And oh, by the way, I'd mention to UK that the LDS was going to try to screw them on a warranty coverage with a "bad out of the box" scam... You'll still be out your $80, and the LDS will still be out you as a future customer... but maybe you'll end up with a spare bulb, and the LDS will end up with a hand slap - or become an "ex" UK dealer.NetDoc once bubbled...
I got it last December as a "present" to myself.
Rick