C9 25' White Wire Stringer and 25 Pure White LED Bulb Light Set - (One Stringer and One Box of Bulbs) 25 Long Life 50,000 Hour Bulbs - 12" Spacing Between Sockets - 25' Long Each C9 Bulb is .65 Watts and 130 Volt - Nickle Coated E12/C9 Base Bulbs 20 Gauge Spt-1 White Wire - 5-Amp Fused Plug - Connect Up to 3 Sets End-to-End - 75' Total Length 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. Our super bright and brilliant Pure White LED C9 replacement bulbs will save you money on your electric bill this year and for many more Christmas holidays to come. Each LED C9 Christmas light is on an E17 Intermediate base and has 3 very bright LED bulbs that only consume 0.67 watts (0.0167 amps) per bulb. This is compared to traditional incandescent C9 bulbs that use 7 watts (0.059 amps). These C9 LED Christmas light bulbs are housed in a hard Pure Whitefaceted plastic bulb that will not fade, chip, or crack. Therefore, using our LED C9 the bulbs will add up to significant energy savings. If you are using C9 LED bulbs for the first time or if you are retrofitting your old C9 strings, then our LED C9 Christmas lights are the smart, green, and an energy-efficient solution.