The ColorKey AirPad QUAD is a battery-powered wireless fixture tailor-made to create colorful centerpiece designs. Its flat, polished surface allows you to uplight glass and crystal vases with stunning effect. The AirPad is completely spill-proof and rated for outdoor use. Its long-lasting Lithium-Ion battery can run for up to 20-hours on a single color, or up to 6-hours running all colors. A full charge takes about 5-hours.