Halide perovskite light emitting diodes (PeLEDs) are enticing candi-dates for displays and lighting. However, most reported PeLEDs are limited for practical applications at high current densities due to decreased efficiency and rapid degradation. Recently, in Nature, Greenham and co-workers developed PeLEDs with exceptional per-formance at a high current density above 1000 mA cm -2, achieved by the introduction of a multifunctional molecule that simulta-neously minimizes non-radiative distributions in emitter layers and suppresses luminescence quenching at the interface between perovskite and charge-transport layers.