ULTRAFIRE WF-502B Q5 Cree LED Flashlight Lamp Assembly: CREE Q5 LED with 210 Lumen Output on max Battery Used: 1 x 18650 battery or 2 x CR123A (neither included) 5 Mode Output: Max - High - Low - Strobe  SOS Water-resistant with clip to secure in pocket Aluminum Body with simple to use push button