Bethlehem Lighting GKI Reflections Novelty Christmas Tree Topper with Pulsing LED and Mounting Arm, Bethlehem Star 11" Pulsing white LED lighted star tree topper Sturdy acrylic construction reproduces the appearance of sparkling crystal Cool-touch, energy-efficient design lasts 10 times longer than incandescent lights 24-inch flexible mounting arm clamps easily onto real or artificial trees Best with tree heights ranging from 7.5' - 10.5'