The Core 10 is the ideal all around torch. Designed from the ground up to deliver the maximum brightness in an compact body. With a 90 minute run time it's ideal as either a primary light for night dives, looking under crevices during the day or stowing in a pocket as a backup. It makes a great first dive light because even if you upgrade to something more powerful down the track this will be a great backup due to its compact size. It's also an excellent choice for tech divers who are carrying multiple backups.