Bethlehem Lighting GKI 50- Light 5mm Wide Angle FLEXCHANGE LED Amber Mini Christmas Light Set 5mm Wide Angle LED bulbs with 4-inch lead, 6-inch spaces and 4-inch tail. Green cord. ENERGY STAR-certified LED lights! ENERGY STAR qualified lighting provides brilliant light but uses 75% less energy, 75% less heat and last up to 10 times longer! These LED light strings have a patented rectifier built in--eliminates unwanted tracing and ensures delivery of the truest colors possible. Unlike incandescent light sets, FLEXCHANGE LED sets allow you to connect dozens of strings together! UL approved for indoor and outdoor applications.