This particular replacement light bulb fits our stylish wall mounted insect trapping light. Each pack contains two 18 inch, 15 Watt bulbs. We do sell shatterproof bulbs as well for areas where food is being prepared or manufactured. The safety coating on those bulbs, is designed to prevent the glass from shattering and contaminating anything. Please call us for special pricing on our shatterproof insect attracting light bulbs! For other options, take a look at all of our fly trap replacement glue boards & light bulbs.