Replication data for the manuscript 'Limited immediate effect of artificial light of realistic intensity on flight behaviour of commuting pond bat (Myotis dasycneme)'. Here, we tested whether pond bats change their flight speed and straightness in response to four light spectra at two light intensities by placing an experimental lamp post at bridges over waterways known as commuting routes. A microphone array was placed next to the lamp post to reconstruct flight paths of bats.