National Tree 50 Bulb Outdoor Soft White Mini Concave LED Illuminate Light Set with Green Wire and 36-Inch Lead Wire with 9-Inch Spacing and 2 Spare Bulb (LS-877-50) 50 concave LED bulb warm white light string featuring Base-Lock to secure bulbs in sockets String remains lit even if a bulb burns out. Set includes 2 spare bulbs and fuse. 37 ft. lighted length with 9" spacing between bulbs For Indoor or Outdoor use with LED bulbs that are energy-efficient and long lasting No end connect plug