Abstract: A full-voltage AC LED module includes a circuit substrate having a first bridge rectifier circuit comprising a set of first load nodes and a set of first power nodes and a second bridge rectifier circuit comprising a set of second load nodes and a set of second power nodes, and a LED module packaged in the circuit substrate and having a first light-emitting device formed of a series of light-emitting diodes and electrically connected to the set of first load nodes and a second light-emitting device formed of a series of light-emitting diodes and electrically connected to the set of second load nodes. By means of connecting the set of first power nodes and the set of second power nodes in series or in parallel, the required input voltage for starting up the LED module is relatively changed.