Seeable Lumens Vs. Lumens?

Answer Light affects people visually and psychologically. The intensity of the light source, and the amount of light hitting an object from a certain distance, characterize the light's brightness.

Top Q&A For: Seeable Lumens Vs. Lumens

Lumens Vs. Wattage?

Lumens and wattage are both units of measurement, the former for light and the latter for electricity. These units of measurement are frequently employed in the description of light bulbs and are ... Read More »

How many lumens does a projector need?

The number of lumens needed for a projector is dependent on the ambient light and the size of the screen. In a dark room with a small 72-inch screen, 1,000 lumens is sufficient. For a 150-inch scre... Read More »

How bright is 10 lumens?

A lumen is equal to one foot-candle (the amount of light from a single candle 1 foot away) falling on an area of 1 square foot, so 10 lumens is equal to 10 times that, or enough for a mini flashlig... Read More »

What are lumens concerning projectors?

ANSI lumens / Projector outputThe light output of projectors (including video projectors) is typically measured in lumens. A standardized procedure for testing projectors has been established by th... Read More »