SMTTECH Night Lighted Golf Balls-LED Light Up - 45g 42.67mm 3 layered golf ball - 6 Count, or 12 Count Glow Night Golf Fun,randomly colors. Balls stay illuminated for 8 minutes after each hit Approximately 45 hours of continuous LED use. High quality 3 layered golf ball Super Bright,But don't loose your ball before you get to it