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How many lumens are in a watt?

Answer

There is no standard watt-to-lumen conversion value. The amount of lumens per watt depends on the type of light source that is being measured. A general incandescent light source is measured at 10 to 15 lumens per watt.

Watts measure the amount of energy required to light a product, whereas lumens measure the amount of light produced by the product. The more lumens in a light bulb, the brighter the light. A halogen lamp may have 15 to 25 lumens per watt. A compact fluorescent light can produce 50 to 75 lumens per watt, and LED lamps produce 50 to 100 lumens per watt.

Q&A Related to "How many lumens are in a watt?"
1. Lumens are the amount of light produced by a bulb. Find the number for lumen output on the light bulb's box. 2. Wattage is the amount of electricity needed to light the bulb. The
http://www.ehow.com/how_4897086_calculate-lumens-p...
( ′lü·mən pər ′wät ) (optics) The unit of luminosity factor and of luminous efficacy. Abbreviated lm/w.
http://www.answers.com/topic/lumen-per-watt
Light Emmiting Diodes.
http://wiki.answers.com/Q/What_light_source_gives_...
isn't it obvious? "per" means divide. lumens per watt is the same as lumens divided by watts, and that is 1500 lumens / 56.161 watts = 26.7 lumens per watt.
http://answers.yahoo.com/question/index?qid=201110...
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