Google's Gmail Web-based email service runs on the Internet Message Access Protocol system, but it also offers Post Office Protocol mail server access.
Definition of LUMEN. 1. 2. : the bore of a tube (as of a hollow needle or catheter). 3. : a unit of luminous flux equal to the light emitted in a unit solid angle by a uniform point source of one candle intensity.
Lumens measure how much light you are getting from a bulb. More lumens means it's a brighter light; fewer lumens means it's a dimmer light. Lumens are to light what. 1  Pounds are to bananas.umens and the Lighting Facts Label. Energy 101 Lumens: The new way to shop for light. When you're shopping for lightbulbs, compare lumens to be sure you're getting the amount of light, or level of brightness, you want.