Hallmark Keepsake Christmas Ornament, Light String Adapter Accessory Attach a light-string-powered Hallmark Keepsake Ornament (not included) to virtually any non-LED Christmas tree lights with this handy adapter. Festive and collectible, Hallmark Keepsake Ornaments come ready to give in a seasonal holiday gift box. The box can also be used for ornament storage. Requires incandescent non-LED light string (not included). Measures 1 x 1.3 x 0.6 inches and comes in a 2.6 x 4.2 x 0.3 gift box. Adapter for use with light-string-powered Hallmark Ornaments (ornaments sold separately). Each piece includes one 2017 Light String Adapter Keepsake Christmas Ornament Accessory in a gift-ready box.