A dual-additive method is used to accelerate radiative recombination in 3D perovskite films, leading to a high photoluminescence quantum efficiency (PLQE) of 96% and a record external quantum efficiency (EQE) of 32.0% for perovskite light-emitting diodes (LEDs). The method promotes the formation of tetragonal FAPbI₃ perovskite, which has a high exciton binding energy, enhancing radiative recombination. This results in efficient, near-infrared LEDs with high brightness and stability. The study shows that the dual-additive approach increases the proportion of tetragonal phase in the perovskite, which contributes to the high PLQE and EQE. The findings suggest that the high performance of the dual-additive perovskite LEDs is due to enhanced radiative recombination rather than reduced nonradiative recombination. The study also demonstrates that the dual-additive perovskite has a higher exciton binding energy, leading to improved light outcoupling efficiency and stability. The results highlight the potential of 3D perovskites for high-efficiency and high-brightness LEDs in next-generation display and lighting technologies.A dual-additive method is used to accelerate radiative recombination in 3D perovskite films, leading to a high photoluminescence quantum efficiency (PLQE) of 96% and a record external quantum efficiency (EQE) of 32.0% for perovskite light-emitting diodes (LEDs). The method promotes the formation of tetragonal FAPbI₃ perovskite, which has a high exciton binding energy, enhancing radiative recombination. This results in efficient, near-infrared LEDs with high brightness and stability. The study shows that the dual-additive approach increases the proportion of tetragonal phase in the perovskite, which contributes to the high PLQE and EQE. The findings suggest that the high performance of the dual-additive perovskite LEDs is due to enhanced radiative recombination rather than reduced nonradiative recombination. The study also demonstrates that the dual-additive perovskite has a higher exciton binding energy, leading to improved light outcoupling efficiency and stability. The results highlight the potential of 3D perovskites for high-efficiency and high-brightness LEDs in next-generation display and lighting technologies.