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Water reuse policies demand high-quality treated water, ensuring no harm to human health and ecosystems. Advanced oxidation processes seem to be one of the most appropriated technologies to achieve the goal of ensuring safe water reuse. In this work, a wireless lab-scale UV-A LED reactor powered by a resonant inductive coupling system was built, maximizing UV photon absorption. The energy inside the photoreactor was supplied through a magnetic field generated by induction coils placed on the external wall. The optimal operating parameters were found to be [TiO₂] = 500 mg L⁻¹ and [H₂O₂] = 100 mg L⁻¹, attaining 50% of RB5 removal after 180 min, with <i>E_EO</i> = 17.6 kWh m⁻³ order⁻¹ and <i>E_SAE</i> = 1.75 × 10³ kWh mol⁻¹ order⁻¹.