OxyLED MD50N Cree LED 500lumen Flashlight Torch, Zoomable Adjust Focus, Light Lamp (No Battery or Charger Included) Black Uses Cree LED with a lifespan of over 50000 hours. IPX-6 wate resistant--Work normally in heavy rain Use one 18650 rechargeable Li-ion battery or 3 AAA batteries (Not include battery) Three brightness levels plus Strobe, SOS to meet different needs of lighting Zoomable function to meet requirements of various scenarios Head of the flashlight can be pulled out to focus the beam