Spring Bulbs Light Necklace is festive & perfect for Easter celebrations! Have a Spring event coming up that you want to light up? No problem, Big Light Bulb Necklaces are for you. To activate your Jumbo Bulb LED Light Necklace, remove battery protector and press button located on battery house for 3 light functions: Strobe, Fast Flash, and Random Flash/Pulse. Features 3 blue, 3 green, 2 pink, 3 purple, and 2 yellow LEDs. Spring Bulbs Light Necklace comes ready to use with 3 replaceable AG13 Batteries.