Designed to be waterproof and durable, this unique pyramid-shaped LED light is designed to last. Available in either white or Disc-O Select, these versatile lights offer gentle illumination that turns on with the click of a button. The Disc-O Select NiteGem allows you to choose from six selectable colors, plus color-changing Disc-O mode which continuously cycles through the colors. The white NiteGem casts a soft light that can be set to either glow or flash. Featuring replaceable batteries (included), these high-quality lights are designed to last. Plus, they float making NiteGems® a perfect addition to pools, coolers, and bathtubs. Disc-O Select NiteGem features six selectable colors + color-changing Disc-O mode White NiteGem features glow or flash modes Waterproof - it floats! Push button for easy activation Two replaceable CR2016 batteries included Battery run time: 20 hours