- This Sharper Image salt lamp releases negative ions to restore the ionic balance of your room- It's made from pure Himalayan pink crystal salt, which is known for its anti-microbial properties- The colour-changing LED light creates a relaxing, ambient glow - perfect for your nightstand- It helps relieve stress and improve your sleep so you can start each day feeling refreshed- Its natural appearance brings a touch of rustic charm to your home or office