Amazon has a great price on a Himalayan Salt lamp! These lamps are said to reduce EMF exposure as well as clean the air. You can get this 6-8 lb. Himalayan salt lamp for just $12.69 currently. The base is natural neem and it has a dimmer switch.
It also gives off an amber glow with no blue light, which can disrupt sleep, so this is a great light to use when reading before bed.