GoSports Light Up LED Golf Balls 12 Pack – Impact Activated with 10 Minute Timer – Includes Red, White, Blue and Green Balls

From the manufacturer

LIGHT UP GOLF BALLS: Practice or play in the dark – Pack includes 12 impact activated LED golf balls (3 Green, 3 White, 3 Red, 3 Blue)
LIMITED FLIGHT: Balls fly about 65% as far as standard golf balls and feel different off the club (they have LEDs and a battery inside)
NIGHTTIME PLAY: Take the fun of golf into the night; The balls are impact activated with a 10 minute timer – use for nighttime chipping or putting practice, or play a short course game with friends and family
ULTRA BRIGHT LEDs: Each ball features an ultra bright LED core and built-in battery; Batteries are built to last approximately 35 hours and are not replaceable