A self-locking display box is disclosed, which is configured to receive one or more electrical components, wherein the box is erected from a blank having a deck panel having a pair of tabs, which are configured to fit within a corresponding notch of a back panel and which snaps into place to form a rectangular box. The back panel has an upper flap panel and a lower flap panel, the upper flap panel and the lower flap panel each having the corresponding notch therein. The deck panel has a pair of tabs, which extend outward from an upper edge and a lower edge of the deck panel, respectively, and are configured to be received within the corresponding notches of the upper flap panel and the lower flap panel upon assembly of the box.