C9 25' White Wire Stringer and 25 Red Transparent Random Twinkle Bulb Light Set - (One Stringer and One Box of Bulbs) 25 Long Life 3000 Hour Bulbs - 12" Spacing Between Sockets - 25' Long Each C9 Bulb is 7 Watts and 130 Volt - Nickle Coated E17/C9 Base Bulbs 20 Gauge Spt-1 Green Wire - 5-Amp Fused Plug - Connect 3 End to End 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 clean professional look. If you choose not to use a support wire then a hanging wire will be satisfactory. 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. OVER 25 YEARS: Since 1999, Novelty Lights has been a trusted leader in the holiday lighting industry. As a US-based company, our customer service team is close to home and available on your schedule. We’re here every business day, dedicated to preserving the joy our products bring. C9 string light set with 25 bulbs, perfect for outdoor patios, decks, special event or Christmas lighting. Each set includes 25 long life C9 bulbs on a white wire stringer with 25 sockets that are spaced 12" apart. These durable transparent C9 light strings have long lasting 3000 hour bulbs and are on a 20 gauge white wire. All our C9 light strings use Novelty brand sockets. These durable and heavy duty c9 outdoor light strings will provide you with years of maintenance free use.