Nitesun D78 military flashlight uses one CREE XM-L2(U4) LED and can reach max 650 lumens output. This flashlight is powered by one 18650 battery with max 16 hours run time.The tail-cap switch design, it’s easy to operate. IP68 standard waterproof features and 150 meters long beam distance, Nitesun D78 is one of your best choice for military, security and outdoor lighting. Custom service for mode, package and accessories are available.