C9 Outdoor Christmas String Light Set - Indoor/Outdoor Commercial Grade Set - Black Wire - 100 Foot Novelty Lights presents this Christmas C9 string light set with 125 bulbs, perfect for outdoor patios, special event, or Christmas lighting. Typically you use these on your house roofline, on your Christmas tree, or around your patio to create a cheerful atmosphere. Each set includes 125 long life C9 bulbs on a Black wire stringer with 100 sockets that are spaced 12" apart. We provide you with an extra 25 bulbs at no charge to be used for replacements. These durable transparent C9 light strings have long lasting 3,000 hour bulbs and are on a 20 gauge Black wire. These durable and heavy duty C9 outdoor light strings will provide you with years of maintenance free use. C9 Transparent 100 Socket and 125 Light Bulb Set 125 Long Life 3,000 Hour C9 Retro Bulbs 100 C9/E17 Intermediate Base Sockets Each C9 Bulb is 7 Watts This Set is Not Connectable End to End - Only 100' For Indoor and Outdoor use Nickel Coated E-17 Base Bulbs 20 Gauge SPT-1 Black Wire 7-Amp Fused Plug General Mounting Tips: Always mount the string first before screwing in the light bulbs. For Outdoor Patios; We recommend using "aircraft wire" to use as support cable for a professional look and if you choose not to use a support wire then you can mount the string at various pivot points depending on your application. For rooflines; Mount along the roofline in accordance with our all in all clips (ASIN B004TNDB2I) to mount under shingles or on gutters which creates a strait secure line along your home. Your satisfaction is our #1 Priority and if you have any issue at please contact us and we would be happy to assist!