Bright and dependable, this lantern is a great choice for everyday needs. Readyflex™ Technology. Runs on two or four D batteries. This ergonomic solution features long-lasting LED technology that shines up to four times brighter than standard LED technology. Powerful beam and extraordinary runtime up to 140 hours (four carbon zinc batteries) or 400 hours (four alkaline batteries). Includes two Eveready® Super Heavy Duty D batteries.