Clear Mini White Wire 2.5 in. Spacing Christmas Light Features Color: Clear bulbs and White wire. Number of Bulbs on String: 20. Bulb size: mini. Spacing between each bulb: 2.5". Lighted length: 4 ft.. Total length: 5 ft.. UL listed for indoor or outdoor use. If one bulb burns out the rest will stay lit. Lights are equipped with Lamp Lock feature which makes them replaceable interchangeable and keeps them from falling out. Contains 1 plug with end connector which allows you to stack multiple sets together. Set of 20. Specifications Weight: 1 lbs.