Going gear has a few 4sevens lights on clearance at good prices.
I picked up a turbo and regular quark last week...took 3 days to get to me and the lights were perfect as usual.
just thought Id throw it out there for anyone looking for a spare torch.

http://goinggear.com/clearance?manufacturer=37

ETA ~ order more than one [over $50] and get free shipping, I also added Sootch00 [youtube dude] coupon code and It knocked of around $8 also