24 LED Lantern, Upgraded model now 20% brighter with 310 Lumens. Dimmable, Best Lantern for Power Outage Emergency and Camping 24 Newly Upgraded LEDs Give Very Bright and Even 360 Illumination, now up to 310 Lumens Infinity Dimmer Dial for Total 0-100% Adjustable Light Output Runs on 3-D Cell Alkaline or Rechargeable Batteries (not inc.) for Longest Run Time Alkaline Batteries Last 36 Hours at Full Power = 7 nights @5hr. each night Lightweight, only 1 lbs. with batteries, which are very easy to install