Str&aring;la LED Decorative Prism, Battery Operated The battery-operated decorative prisms are cordless, so you can place them on your dinner table or around your home to give shining points of light for parties or every day sparkle.Uses LEDs, which consume up to 85% less energy and last 20 times longer than incandescent bulbs. Acrylic,Package quantity: 3 pack Good to know For indoor use. Built-in LED light source. LED life time approx. 20,000 hours Light color: natural white (4000 Kelvin).