Bright and dependable, the Eveready ready flex floating lantern is a great choice for everyday needs and in the event of emergency. This light is an economical solution for storms, camping and much more. With ready flex technology you can use either 2D batteries or 4D batteries to power the light. 2 Eveready super heavy Duty D batteries included. Alkaline batteries will provide even longer runtime. [Floating Lantern]: Floats For Easy Water Recovery. Great For Activities Such As Fishing Or Hiking, Or For Emergencies Including Storms And Hurricanes. [Ready Flex Tech]: It Can Run On 2 Or 4 D-Size Batteries. The Light Comes With 2 D Batteries. 4 D Batteries Can Be Used To Extend Battery Life. [Bright Led Technology]: Features Long-Lasting Led Technology, This Ergonomic Solution Also Shines Up To 4X Brighter Than Standard Led Technology [Extraordinary Run Time]: Powerful Beam And Extraordinary Runtime Up To 140 Hours (4 Heavy Duty Batteries) Or 400 Hours (4 Alkaline Batteries) [Batteries Included]: Includes Two Eveready Super Heavy Duty D Batteries. Ready To Power Up Whenever And Wherever You Need It! 2 Additional D Batteries (4 Total) Can Be Used To Increase Battery Life. [Emergency Light]: This Floating Led Lantern Is Perfect To Have Around In Case Of Emergencies Such As Hurricanes, Power Outages, Blackouts, Storms, Etc. Always Be Prepared With Eveready Equipment.