 The optoelectronic properties of the mixed hybrid lead halide parafskite CH3NH3PBI3-XCLX have been subject to numerous recent studies related to its extraordinary capabilities as an absorber material and thin film solar cells. While the greatest part of the current research concentrates on the behavior of the parafskite at room temperature, the observed influence of phonon coupling and excitonic effects on charge carrier dynamics suggests that low temperature phenomena can give valuable additional insights into the underlying physics. Here, we present a temperature dependent study of optical absorption and photoluminescence, PL, emission of vapor deposited CH3NH3PBI3-XCLX exploring the nature of recombination channels in the room and the low temperature phase of the material. On cooling, we identify an upshift of the absorption onset by about 0.1EB at about 100K, which is likely to correspond to the known tetragonal to orthorhombic transition of the pure halide CH3NH3PBI3. This article was authored by Christian Werenfenig, Mingjin Liu, Henry J. Snaith, and others. We are article.tv, links in the description below.