Reference on light therapy and non-seasonal major depression

Efficacy of Bright Light Treatment, Fluoxetine, and the Combination in Patients With Nonseasonal Major Depressive Disorder JAMA Psychiatry. 2016;73(1):56-63.
Lam RW, Levitt AJ, Levitan RD, Michalak EE, Cheung AH, Morehouse R,Ramasubbu R, Lakshmi N. Yatham LN, Tam EM.

"Conclusions and Relevance: Bright light treatment, both as monotherapy and in combination with fluoxetine, was efficacious and well tolerated in the treatment of adults with nonseasonal MDD. The combination treatment had the most consistent effects." Full Paper