The interaction of visible light with Pd(0) complexes has recently been advanced by the groups of Gevorgyan, Fu, Ryu and others as a method for one-electron reduction of organic halides that departs from the typical strong preference of Pd(0) to react by two-electron oxidative addition mechanisms (Scheme 1). This manifold has been used in a wide range of reactions including Heck and Negishi-type couplings, the coupling of alkyl halides with C(sp 2 )-H and C(sp 3 )-H sites, desaturations, tandem reactions involving the cyclization of radical intermediates with carbonylation, C-C coupling, and others. However, these examples only alter catalysis at the oxidative addition step.