One of the biggest challenges of underwater photography is lackluster lighting. The Sea Dragon 1200 photo/video dive light ($400) resolves that issue by attaching to any SeaLife or GoPro camera.
Rated for a depth of 200 feet, the light produces 2,000 lumens, which is more than enough to get a great shot or double as a secondary diving flashlight.
A 100-degree, wide-angle beam illuminates everything in the scene you're trying to capture without producing image hot spots, and a lithium-ion battery runs the LED light at full power for up to 75 minutes. SeaLife, 800-257-7742
Check out the video below to see the Sea Dragon 1200 Photo/Video Dive Light in action.