Ultrafire Wf 501b Cree Xml T6 5 Mode Cree Led Flashlight 900 Lumens w/Holster CREE XML T6 with 900+ Lumen output 5 Mode Output: Max - High - Low - Strobe  SOS Aluminumalloy casing with o-rings for water resistant design. Can be mounted on tactical rail with 1" ring mount Rugged, anodized, CREE LED designed to last 100,000 hours