These days, many lights coming out in 2022 and beyond are fanless. The days of big fan-filled grow lights are long gone. Large heat sinks are used in this new-generation grow lights to guarantee that all of the heat is dispersed via these apertures. However, many growers choose fanless LED to grow lights since they run at cooler temperatures and do not produce the loud drone and buzz associated with fan noise.However, many growers choose fanless LED to grow lights since they run at cooler temperatures and do not produce the loud drone and buzz typically associated with fan noise.