I recently recorded a quick video to introduce people to Ammonite products and specifically the LED Stingray system from Ammonite.
This is a nifty tray and lighting rig setup with 2000 lumin LED lights that are rated to 200m, providing 120 degrees of lighting each for your underwater video needs. They also sport 18650 Lithium batteries (The same type Tesla uses) and a dual intelligent charger.