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.
1 Lumens measure how much light you get from a bulb. 2  More lumens means it's a brighter light; fewer lumens means it's a dimmer light. 3  Look for the Lighting Facts label on light bulb packages to help you find the right lighting option.ut with new lighting options designed to use significantly less energy, buying bulbs based on watts is no longer a reliable way to gauge the right level of brightness. That instead takes lumens, which measure how much light you get from a bulb.