The Bigblue AL 1800NP LED delivers great luminosity at 1800 lumens in 85 degree light beam. The sleek and ultra-compact aluminum body can withstand the most rugged diving situation. It offers 6,500K sun white light output. 4 levels of brightness and SOS controlled by a reliable push button with battery indicator which can be one hand operation. The rechargeable 26650 battery pack comes with a smart charger, enabling you to quick-charge the battery pack in 2-3 hours. The 4 steps power adjustment lets you choose between four output levels, IV at 100%, III at 50%, II at 25% or I at 10%, extending the burn time and reducing reflections at close range. Replaceable 26650 battery. Lanyard included.