Can be turned on 24 hours a day, used in low light conditions at night.These shuttlecocks are economical for beginners and hobbyists alike, and are perfectly designed for playing in dark environments. It is also suitable for badminton leisure sport ball game and daily training. Enjoy the pleasure LED badminton racket with your family and friends.Colors are changed either gradually or by flashing. These shuttlecocks are economical for beginners and amateurs alike, and are perfectly designed for playing in dark environments. And also suitable for badminton game of ball sport daily entertainment and trainingEach flywheel weighs only for excellent rebound and ease of handlingThis led badminton shuttlecocks are designed with goose feathers and a cork ball head, which are built to last; Equipped with high quality LED, the natural cork head has good elasticity. The real goose down material improves steering wheel durability.