How fun to drink your drinky down – With light and color all around. Have a party, live it up – cause there’s a party in your cup. The Crystal Light Up Ice Cubes Multicolor have 2 different light capabilities. Click the button located on the bottom of the cube to change the light settings. Set it on one of 7 different colors or at a stand still luminosity or on the rainbow function. The rainbow function transitions through all the colors.