Common Fan Clutch Problems. The most common problem encountered with a fan clutch is when the car overheats while it is not running. This is when the fan clutch does not work properly and thereby decreasing the car air conditionerâs performance as the fan clutch also cools the condenser of the air conditioning unit.
Also referred to as Maximum Overall Length (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
Lumens are a useful metric for comparing how bright a light source is (i.e. a 60W incandescent bulb is about 850 lumens â see Electric Light Sources for more about lighting efficiency). The human eye perceives light within the âvisible spectrumâ â between wavelengths of about 390 nm (violet) and 700 nm (red).