This Kurt Adler 180-Light 6-Foot USB Fairy LED Cluster Lights with silver wire is a new addition to our extensive light line. With 180 warm white LED lights, this cluster light set will be a modern addition to your home holiday lighting decor. This light set features a festive twinkle effect (steady bulbs with 1/4 twinkle effect). Features: Usb Port, Led Lights Hardwiring: Required Light Spacing: 1 Inch Light Bulb Type: Led Power Source: Plug-In Use: Indoor, Outdoor Measurements: 4.73 Width/Inches, 4.73 Length/Inches, 2.76 Height/Inches Lead Cord Length: 20 Inch Weight (lb.): 0.25 Lb Base Material: 60% Copper Care: Spot Clean Decor Styles: Traditional Country of Origin: Imported