Most lighting manufacturers and others in the business make a distinction between lumens and luminous flux, using them to refer to two related, but different, things. We do too. But others seem to use them interchangeably.
To find out how they're related, how they're different and what we mean by each, read Luminous Flux
OK, we know what lumens are, or at least where to find out
. But what do the light bulb companies mean when they note the Initial
Lumens on the package? Is that the light you get when you first turn a light bulb on? To find out... Read more
In electrical and lighting terms, a receptacle is that thing in the wall (usually) that you plug things into. To find out more about receptacles, see the definition in the Lighting Glossary
There an LED 60-watt-equivalent light bulb from Phillips that's so new it won't be in the stores until March 14. But it's a winner. Lowest annual replacement cost, lowest annual power usage, it's dimmable, and its lumens and temperature color are exact matches for the 60 watt incandescent bulbs they're built to replace. To learn more about these new leaders in the sweepstakes... Read More