I have a BigBlue AFO focus light that I don't use anymore - perfect condition (only about 15 dives on it) - as I upgraded to a Sola Photo 800. I used this on my previous camera (Sony RX100 & Nauticam housing).
-Automatic Flash Off (AFO) Function - Turns Light Off for 1+/- 0.3 Second for Photos
-Light Source: Cree LED
-Light Output: 250 Lumens with 55° degree beam
-Maximum Depth: 330' (100 meters) Tested, Double O-Ring Sealed
-Switching System: Twist Front Switch
$125 includes: shipping & paypal fees (USA only), 6 AAA eneloop batteries (light uses 3 at a time), cold-shoe mount, clamp, & focus light. Shoot me a PM if you're interested.