Perfect for a power outage or camping trip, this indoor/outdoor emergency lantern produces approximately 20 hours of light. Krypton bulb and unit, once twisted tightly into the base with dots lined up, this battery powered lantern will cast 200% more light than a standard bulb. Plastic 6 1/4" shade features carrying handle. Emergency light uses 4 D batteries (not included). 12 1/4" high.