The brightness of traditional (incandescent) light bulbs is stated by the wattage of the bulb. The higher the wattage, the brighter the bulb. All Charles Edwards light fixtures have the number of bulbs and maximum wattage stated.
A common question is can the wattage in a fixture be increased in order to increase the amount of light?
The problem with traditional incandescent light bulbs is that they waste energy (wattage) radiating heat as well as light. The additional heat that a higher wattage incandescent bulb creates may start to cause problems over time, as there will be too much heat build-up within the fixture. A more useful way to see how much light a fixture emits is by considering lumens.
A lumen is a measure of brightness. The more lumens in a light bulb, the brighter the light. Energy saving bulbs such as halogen light bulbs and LED light bulbs use less energy (watts) than incandescent bulbs to produce an equivalent amount of light (lumens). When replacing an incandescent bulb just look for an equivalent amount of lumens in an energy saving bulb.
Simply by changing the traditional incandescent bulbs for a low energy alternative with more lumens you can increase a light fixture’s brightness.
This emphasis on Lumens not Watts has underpinned legislative changes covering the manufacture and sale of bulbs across the globe.
UK & Europe Legislation: The phased ban on the sale of incandescent lightbulbs is complete following the EU directive to reduce energy use of lighting.
The phase-out timetable: http://www.lightingassociation.com/bulb-phase-out-timetable/
The EU guide to energy saving bulbs: http://ec.europa.eu/energy/lumen/index_en.htm
USA Legislation: The Energy Independence and Security Act (EISA) came into effect on Jan. 1, 2011, in California and Jan. 1, 2016, throughout the U.S. This legislation requires all light bulbs to be upto 30% more efficient. This is a gradual phase out of inefficient bulbs.
For timetables and further information visit:
American Lighting Association: www.americanlightingassoc.com/
The Lumen Coalition: www.lumennow.org/
Lumens are a measure of brightness. The more lumens in a light bulb the brighter the light. When replacing a traditional incandescent bulb just look for an equivalent amount of lumens in an energy saving bulb.
Source : US Energy Department