Our 12-pack of liquid-activated White LED Liquid-Activated Ice Cubes do not have the usual on and off buttons but light up when they are put in liquid. Just place them into your drink of choice they will light up and create a fun look for any party theme or holiday. Our White Liquid Activated Ice Cubes look great as water decorations in water based centerpieces, too. Perfect for Weddings or at any event with any color scheme. White solid on Liquid activated light cubes are reusable and may last up to 12 hours. Our solid on White Liquid Activated LED Ice Cubes come in a pack of 12 cubes. Batteries are included and installed but cannot be replaced.