Coleman 4D Rugged Personal Size Rugged Lantern 7-watt fluorescent twin U-tube for a brighter, whiter light: sheds 140 lumens on High Heavy-duty thermoplastic and rubber construction makes lantern extremely durable Runs up to 23 hours on Low, 14 hours on High on 4 D batteries (not included) Easy bulb replacement with quick-release system Cool-touch fluorescent tube keeps lantern running cool, for safety