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www.reference.com/article/many-lumens-need-ad2c783d89793c6

Ambient lighting for daily living activities in a bedroom or living room is rated 400 to 800 lumens per square meter. General room lighting for reading and work in a garage, kitchen or bathroom is rated 800 to 1700 lumens per square meter. Reading and detailed crafting ...

www.reference.com/article/light-output-lumens-light-bulb-7cd00a2f64418973

A light's output in lumens can be found by checking the Lighting Facts label prominently displayed on the packaging of most lighting fixtures. If lacking a Lighting Facts label, the output of lumens can be determined through the use of a watts to lumens calculator.

www.reference.com/article/use-lumen-meter-68d3cce8194dc013

Using a lumen meter is usually a simple, two-step process that takes just a few minutes. Find the location you want to measure, and hold the sensor out. Turn on the meter to view the reading. Each model varies slightly on specifics, so consult the owner's manual for fur...

www.reference.com/article/important-lumens-bulb-f4009a15a0729f1d

Lumens measure how bright a light bulb is, so it is only important to know how many lumens a bulb produces if the primary lighting concern is brightness. The more lumens a bulb has, the more light it produces and a bulb with fewer lumens produces dimmer light. Lumens do...

www.reference.com/science/many-lumens-watt-3622c4d36a378408

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.

www.reference.com/article/many-lumens-sun-give-off-4023d361b6e9bd23

Unobstructed, midday sunlight provides about 100,000 lumens per square meter on the Earth's surface. Illuminance varies according to the geometric relationship of the Sun to the Earth's surface.

www.reference.com/article/lumens-per-watt-ea238b0d64d356d2

Lumens per watt is a measurement that dictates how much light is produced for each watt of electricity used. The more lumens per watt, the more light is produced without adding extra expense or electricity usage. This measurement is used to determine overall brightness ...