Novelty Lights 25 Pack C9 Twinkle Outdoor Christmas Replacement Bulbs, Black Light Purple, E17/C9 Base, 7 Watt Novelty Lights 25 pack C9 random twinkle incandescent replacement bulbs works great for any indoor or outdoor lighting application that requires this retro fit tradition C9 bulb. This bulb works great for house rooflines during the holiday season or strung in a canopy patio application. Each twinkle C9 bulb is 7 watts and 110V-120V which gives just the right amount of light when lighting your house roof line for Christmas, your Christmas Tree, or a party string light for your restaurant or patio. This bulb is often referred to as a classic retro fit Christmas light bulb. This C9 bulb has a E17/C9 Nickel base which helps prevent corrosion from weathering that occurs during the holiday season. The dimensions of this retro bulb are 3" tall and 1 1/4" wide and are slated for a life span of 3,000 hours that will light up any application for hours of maintenance free use. This listing is only for replacement bulbs only with C9 strings sold separately. Novelty Lights has an assortment of C9 strings available in pre-made 25' and 100' lengths as well as 330', 500', and 1,000' bulk reels in a commercial grade 20 gauge or 16 gauge wire. PRODUCT NOTES: The listing is for REPLACEMENT BULBS ONLY with C9 strings sold separately. The bulb dimensions are 3" Tall by 1 1/4" Wide and are shown with reference in the secondary images. Please make sure that you that you are in need of a C9 Intermediate base bulb before ordering because a common mistake by customers is ordering the wrong size bulb. BROKEN BULBS? IF YOU HAVE ANY BROKEN BULBS PLEASE CONTACT OUR CUSTOMER SERVICE AND WE WILL SEND YOU NEW REPLACEMENT BULBS.