Set of 100 Commercial Length LED C7 Christmas Lights Item #39-552-00 Features: Color: warm white bulbs / green wire Number of bulbs on string: 100 Blub size: C7 Spacing between each bulb: 5 inches Lead cord length: 4 inches Additional product features: LED lights use 90% less energy Super bright bulbs Cool to the touch Straight line construction UL listed for indoor/outdoor use You can connect up to 21 sets together Material(s): bulbs/wire/plastic