This is the BigBlue AL250 Aluminum 250 Lumen 8Adeg Fixed Beam Dive Light Features: 250 Lumens Aluminum alloy, anti-corrosive anodized Powered by 2xAA alkaline or Ni-MH batteries 8-degree narrow beam Up to 2 hours burn time Weight is 135g (including battery weight) Twist to turn on Available colors: Black, Gold, Silver, Blue, or Red AL250: Brighter for 2016, this multi-function LED light is suitable for diving and other outdoor activities -- hiking, running, camping, fishing, etc., as it can be used on land or underwater. The Bigblue AL250 comes in five great color options, a lanyard, and only uses 2 AA batteries.