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| Condition | Action | |-----------|--------| | Enclosed housing | Add passive heatsinks to the chassis. | | Ambient > 45°C | Use forced air (25–30 CFM fans). | | Direct sunlight | Use IR-filtering cover glass + increased airflow. |

If you are researching "Sones" (a unit of perceived loudness), you might be looking for noise ratings for ventilation fans or cooling systems. sone248uc hot