Nitesun B38 is a high power LED flashlight specially designed for hunting and outdoor lighting with a tail-cap switch. This flashlight uses one CREE XM-L2(U4) LED which offers max 750 lumens output. It can reach max 5 hours run time while powered by one 18650 battery. Nitesun B38 is one of your best choices for long beam shot lighting. Custom service for mode, package, and accessories are available.