The NOVA 720 delivers brilliant illumination to light up the dark spaces and bring out the vibrant colors on night dives as well as day dives. Machined from heavy-duty aluminum, it uses simple twist-on/twist off activation backed by double-O-ring seals. Strategically placed knurling (raised-up diamond-shaped indentations in the metal) improves grip and makes the twist activation that much easier. The NOVA 720 offers a 50% mode that allows you to increase burn time if you don’t need full power. It is also equipped with an overpressure valve on the end cap, an important safety feature not normally found on lights in this price range. It’s a rugged, full-featured dive light well-suited to all diving scenarios.