There is a very important detail that most of people doesn’t notice or even understand when go shopping lamps or devices for lighting. The big detail is this: doesn’t make sense buy a lamp based on Watts!
When you are looking for a lamp, you really want light or level of brightness. So, when you’re shopping for light bulbs, compare Lumens to be sure you’re getting the amount of light you want.
Traditionally, we have been buying light bulbs based on how much energy they consume (Watts) — no matter how much light they give us (Lumens).
Lumens measure how much light you are getting from a bulb. More lumens mean it’s a brighter light; less lumens means it’s a dimmer light.
Lumens let you buy the amount of light you want. So, pay close attention, when buying your new bulbs, think lumens, not watts.
The brightness, or lumen levels, of the lights in your home may vary widely, so you can follow some correlations i.e., 1600 lumens represents a 100-watt incandescent bulb. If you want to replace a 75W bulb, you should look for an energy-saving bulb that gives you about 1100 lumens. In a similar way, replace a 60W bulb with an energy-saving bulb that gives you about 800 lumens or a 40W bulb with an energy-saving bulb that gives you about 450 lumens.