Acebeam D20 2700 Lumen Waterproof Dive Light 1 * 21700 USB-C Rechargeable Battery Pre-InstalledAcebeam D20 is a Palm Sized Dive Light utilized with a powerful CREE XHP35 HD LED. Micro USB rechargeable 5100mAh 21700 battery makes it is convenient of not having to carry around another device due to its longger run time. Feature Value LED 1 x CREE XHP35 LED with lifespan of 50,000 hours Max Output 2700 lumens powered by 1 x 21700 rechargeable battery Low 375 lumens; 7. 5 hours; 129 meters; 4130cd High 2700~1000 lumens; 2min + 120min; 311 meters;