The Seac SZ 5000 is an underwater flashlight characterized by high luminous power up to 4200 Lumens, ideal for night diving in wrecks or environments where full visibility is required (caves or shipwrecks), as well as for underwater photographers. Despite being a very powerful light, its dimensions are relatively small: 65 mm in diameter and 178 mm in length, allowing the diver to store it in their BCD pocket or simply attach it anywhere.

The burn time is 2.5 hours at minimum power and 1 hour at maximum power. The flashlight is powered by an internal 7800 mAh lithium-ion battery that is rechargeable via USB-C (charging indicator on the battery itself). The electromagnetic switch is equipped with a safety lock to prevent accidental activation.