The Sea Dragon 1500 is an LED light with a claimed output of 1500 lumens delivered in a 120degree (80degree underwater) beam.
A removable, rechargeable 25W li-ion battery powers the single COB LED array. The light has 100%, 50% and 25% power options with a claimed burntime of 70min at full power. It also has a universal 1/4-20 tripod mount allowing integration into most camera systems. Price is £229.