$1500 or best offer. Never been in the water and come with warranty card. I won this in a charity raffle but doesn't really suit my style of diving and photography. List price is $2400: https://www.backscatter.com/Gates-GT14-Underwater-Video-Light. Comes with a 1" ball mount as shown.
I'd also entertain trades for Olympus micro-4/3s gear that would help me upgrade my E-PL5 system.
