C9 Transparent Red Incandescent Christmas Replacement Bulbs *Great for outdoor lighting, string lights and Christmas lights *These traditional C9 transparent Christmas lights are bright and and will provide many years of use for your indoor or outdoor Christmas light display. *Our C9 7 watt, replacement bulbs will enhance your patio, roof line, Christmas tree or your home or business. *The bulbs measure approximately 3" tall and 1 1/4" wide. *The bulbs have an E17 intermediate base and work well with 25', 50' or 100' stringers (sold separately) or with custom applications. *25 Pack of Transparent C9 7 Watt Bulbs 3,000 Hour Long Lasting Bulbs *130 Volt 7 Watt Bulbs Indoor and Outdoor Use E17/C9 Intermediate Base Nickel Coated Base