The unique crystalline structure of Himalayan mountain salt was formed two hundred and fifty million years ago by the heat and pressure generated as the Himalayan forced itself up from the ancient sea bed between tectonic plates. The salt here has been harvested for over three thousand years and today is still valued for its quality world-wide. Himalayan salt crystal lamp includes a 6 feet long black cord set & light bulb mounted on a rosewood wood base. In compliance with Intertek certification, the cord set is attached to a plastic safety clip on to the wood base. Lamp weight ranges from approx. 3-5 lbs. The white salt lamp will gently purify your indoor air. It can be used for a white healing ambiance or add any color light bulb for color therapy. These colorful lamps are a extreme beauty to look at and they are very rare to find. Made in Pakistan.