Christmas Light Up Bulb Necklace, a must-have festive party accessory! This necklace features bright multi-color bulb lights connected by green wires, built-in replaceable battery pack for long-time glowing. Made of safe, odorless PVC material, lightweight and comfortable to wear all day. Ideal for Christmas parties, holiday parades, carnival events and family gatherings. The steady glowing colorful bulbs help you stand out in any celebration, great as holiday gifts for kids and adults. Splash-proof design fits daily outdoor use, just avoid long-time soaking. Bring extra festive vibes to your holiday look instantly!