Bring the cool light of a winter wonderland to your home lighting with sapphire blue LED Christmas lights. The 25 C7 bulbs have permanently fixed covers that are spaced 8 inches apart on green wire, making this set perfect for decorating trees and house trim. These unique lights achieve a radiant, dispersed glow by using colored LEDs filtered through a soft white bulb. UL listed for indoor/outdoor use, 87 sets of the 17-foot strings can be combined end-to-end. This holiday season wrap your home in bright blue lights.