A lamp equipped with a full-spectrum bulb provides naturally balanced, glare-free light that reduces eye strain while increasing contrast. The latter not only makes it easier to read, but also renders colors with greater brightness and clarity. To be sure, full-spectrum lighting isn't going to alleviate your allergies or cure your cough, but many attest that there's a psychological uplift—be it a boost in mood or motivation—to be gained from a type of light that so closely mimics natural daylight. True, you can place a full-spectrum bulb in a lamp that you already own, but it's well worth considering a specially designed fixture like the Full Spectrum Desk Lamp. Available at Amazon; $41.25.