Classic Purple and Yellow Lava Lamp An official, authentic Lava brand lamp; Silver finish base, purple liquid, yellow lava. 20-ounce size; 14.5", classic motion-style light; Includes one 25 watt appliance bulb. Glass housing with sturdy base and matching top If liquid is cloudy, run for extended time to return to normal. Avoid jostling the lamp which can cause wax to break-up.