The TL3800PS is a high-performance technical dive light with a 3800 lumens output and a tight 8° beam for maximum penetration with a smooth peripheral spill. Powered by a self-contained BATCELL18650X4SUPREME Li ion rechargeable battery pack, it offers reliability and long runtime in demanding conditions. Control is via a convenient body-mounted push button for effortless operation, even with gloves. . Light source 3 x LED. Light output 380 Lm (level I), 950 Lm (level II), 1900 Lm (level III), 3800 Lm (level IV). Casing material Aluminum alloy. Anti-corrosive anodized. Power source Li ion Rechargeable BATCELL18650X4SUPREME. Angle of light beam 8° narrow beam. Color temperature 6500K. Burn time 3 hrs (level IV), 6 hrs (level III), 12 hrs (level II) and 30 hrs (level I). Maximum depth 150 m tested. Size Dia. 63 x L. 125mm. Weight in air 517 g (including battery). Buoyancy in seawater -221 g (including battery). Switching system Push button with battery indicator. Front glass Tempered optical glass. Included Battery Pack. USB Charger. Lantern Grip Handle. Soft Goodman Glove. Lanyard. 5L Outdoor Dry Bag.