This set of Everglow clear incandescent mini lights are sure to bring some pizazz to your home. They come equipped with a multi-function control box that allows you to select your light speed at the touch of a button. There are 8 separate modes to choose from that range from steady to combination. The UL certification allows for use indoors or outdoors. Use them for your holiday decor, a party, or everyday household use. Decorate your tree, a mantelpiece, centerpiece, doorway, or any place you wish with these fun lights multi-function lights. Product Features: Number of bulbs on string: 150 Bulb size: mini Bulb type: incandescent Spacing between each bulb: 3.5" Lighted length: 37.5' Total length: 39' 19" lead cord Additional Product Features: Super bright bulbs If one bulb burns out, the rest will stay lit Contains 1 plug with end connector which allows you to stack multiple lighted items together (not to exceed 210 watts) Comes with replacement bulbs and spare fuses UL certified and approved for indoor or outdoor use This set is equipped with a micro-chip speed control device Control box allows you to adjust the speed from steady burning to fast chasing Functions are combination, sequential, chasing/flashing, sparkling, in waves, slo-go, slow fade, steady Wire gauge: 22 120 volts, 60 hertz, .51 amps, 61.2 watts