Yes. There is a technical challenge for completely eliminating such artifacts. Those can be reduced by decreasing sensitivity of the sensor, but it’s trade-off with transmission range. We tuned the sensitivity with which it doesn’t flash on animal’s head in typical lab environment. If you see artifact in your experimental setup, please keep enough distance from fluorescent lights. The new communication protocol for the 2ch pulse receiver resulted in higher resistibility for environmental noise. For noisy environments, we can even provide 1ch version pulse receivers using this protocol. Please contact us for more details.