Highly protective. Extremely effective against computer and electromagnetic stress. It is the best crystal to use to overcome any form of disorganization. Heightens intuitive powers. Helpful in overcoming chaos. Assists in moving beyond narrow-mindedness to the bigger picture. Excellent learning aid-links what is already known to what is being learned. Increases concentration and helps absorb new information. Stabilizing and balancing in relationships. Rekindles sexual libido. Colour may vary with more green or purple as each lamp is unique. Comes with cord and bulb.