| The 80 mm fan is controlled either automatically based on your BIOS settings, or manually via a rheostat control on the rear of the unit. |
| One serves the sidelamps, one the tail and plate lamps and the third goes to the rheostat for the dash lamps. |
| An ideal situation would be a very bright bulb attached to a rheostat, so that the desired illumination level could be chosen as required. |
| If your bathroom is bright, consider installing a rheostat or washing up by the light of a night light. |
| The rheostat shafts are essentially cylinders with a flat face cut down one side. |
| Noise is controlled by the optional rheostat, which does lower the noise. |
