Golf Anytime- It improves your golfing loyalty with the addition of KINGTOP LED hole bulb to your backyard putting green, bringing you so much fun at night. If your existing flagpole has the ball retriever, you can take the flag out and put the hole lights in from the top of the pole. Convenience- Each light is powered by 3 AAA batteries (all batteries included), lighting up your backyard putting green hole for the whole night, and giving a cool white glow that lasts for 16-18 hours with a simple on-off switch. It also comes with a clip and hooks for camping use, etc. Golf Anytime- It improves your golfing loyalty with the addition of KINGTOP LED hole bulb to your backyard putting green, bringing you so much fun at night. Don't let darkness limit your fun forever!. Standard Size- Fits all PGA standard golf holes, great for illuminating putting cups for casual nighttime golf play, putting, and chipping practice. Just put it in the hole cup and you are good to go then. If your existing flagpole has the ball retriever, you can take the flag out and put the hole lights in from the top of the pole. Various Modes- KINGTOP glow hole cup lights allow you to cycle among Ultra Bright, Bright, and Flashing, which is really awesome for backyard night golf parties. It's all 6000K Cool White LEDs. Innovative Lens- KINGTOP novelty hole light has 9 professional optical lenses to centralize the LED's beam angle, making your putting hole brighter than anyone else but also keeping the unwanted light far away.