This unique device will substitute the mood-elevating effects of the sun, where it will channel safe bright light directly to photosensitive regions of the brain via the ear canal. Proven to increase energy, it also functions as a preventative or treatment of mood swings. Now this is no witch doctor claim, since Valkee has CE medical device certification and is clinically tested.
Perfect to keep the subject of the Dark Lord of the Sith happy even when working under him, and Vader might even find some use himself when he realized that he has come so far into the Dark Side that he might just be irredeemable, which we know is not the case in Episode VI. [Press Release]