Figure 2a.
From: Dependence of aging on inhomogeneities in InGaN/AlGaN/GaN light-emitting diodes

Output power versus current in dependence on the degradation time for LED N.
From: Dependence of aging on inhomogeneities in InGaN/AlGaN/GaN light-emitting diodes
Output power versus current in dependence on the degradation time for LED N.