Quantum light sources are often characterized by their brightness and their non-classicality. In turn, the non-classicality can be characterized by the state statistics; for instance, the single-photon purity, and the indistinguishability of replicas of the state. Thus, three parameters are evaluated (brightness, statical state distribution and indistinguishability) and this generally requires two or more measurements. I will discuss a way to make these measurements simultaneously. These measurements are made with a semiconductor quantum dot light source. We make and characterize the properties of these sources, and I will discuss their properties.