This is the Tektite Trek 4 LED 38 Lumen Scuba Dive Light Features: Dual LED flashlight A good back-up light 30 lumens1,000&'; depth rating Bungee wrist lanyard and rubber glare guard The Tektite Trek 4&';s LED&';s provide a powerful 30 Lumens of Brightness, is manufactured from durable corrosion free ABS and Lexan materials for long life. The Trek 4 measures 7.37 x 1.25" (18.7 x 3.2 cm) and weighs 4.48 oz (127 g).The Tektite Trek 4 comes with a bungee wrist lanyard, rubber glare guard and is available in three colors.