When you’re looking for light bulbs that emulate the natural light of the sun, your best options fall into three categories: LED, halogen, and full spectrum light bulbs. Each type offers specific features that might suit your needs, such as energy efficiency or color rendering.

Full-spectrum light bulbs contain a natural visible spectrum similar to the sun. These lights also have very good color rendering, meaning they reflect light very similar to a natural light source like the sun.

A bulb that is both daylight and full spectrum is closest to the sun’s light at noon that technology has been able to mimic. This style of bulb or fixture is often used in light therapy for Seasonal Affective Disorder (S.A.D.).