DynaTrap 7W UV Replacement Light BulbProduct Details DynaTrap Insect Traps require fresh bulbs to keep providing the protection you depend upon. Replacement bulbs are essential to have on hand whenever they are needed. Each bulb lasts approximately 3,000 hours or about 4 months. Each package comes with one 7 watt bulb to keep your trap operating at peak power. Features : Fluorescent UV light effectively attracts mosquitoes and other flying pests to trap Keeps your DynaTrap operating 24