~10 hour light-life on solid colors. Multi-color will have ~4 hour light-life

Push-Button Activated "Ice Cubes"

$5.00/per cube

It looks like a lit-up ice cube, but actually is a small LED encased in nontoxic gel and clear, waterproof plastic. Cubes are activated with a push-button on the bottom. Sold individually. Batteries are not replaceable.