To activate you touch a strong light source, such as the light from your smartphone camera, to the printed circle on the ball.
No Timer! Don't loose your ball before you get to it. Ball turns off when you deactivate it!
Great for night golf - Great Novelty Gift
Once hit these will flash for 5-8 minutes
The battery inside will last about 40 hours which means you can strike the ball 300 times.
