GE String A Long 100 Constant On Ultra Bright Miniature Christmas Lights A reliable brand you can trust, GE Constant On means the lights stay on even if a bulb becomes loose. Bulbs are larger and Brighter than standard minature bulbs. 30% Brighter! 41.2 feet (12.5 m) lighted length. Connect up to 4 sets end to end. 2 year Limited Guarantee.