Northern Lights Strain: Northern Lights, also known as “NL,” is an indica marijuana strain made by crossing Afghani with Thai. Northern Lights produces euphoric effects that settle in firmly throughout the body, relaxing muscles and easing the mind. Consumers say this strain has a pungently sweet and spicy flavor profile that is smooth on the exhale. Medical marijuana patients choose Northern Lights to help relieve symptoms associated with depression, stress, pain and insomnia.