Product Features: Color: multi-color bulbs / green wire Multi-color consists of green, amber, pink, red and blue lights Number of bulbs on string: 100 Bulb size: mini Spacing between each bulb: 4" Lighted length: 25.1" Total length: 27.5" 28" lead cord Additional Product Features: Lights play 25 classic holiday songs Lights are synchronized to brighten or dim to the beat of the programmed music Control box allows you to choose dancing lights or steady on lights without music and control the volume UL listed for indoor use only If one bulb burns out, the rest will stay lit Comes with replacement bulbs and spare fuse Contains 1 plug with end connector which allows you to stack multiple sets together (not to exceed 210 watts) Wire gauge: 22 120 volts, 60 hertz, .34 amps, 40.8 watts