How many lumens is 3200ansi?

Generally speaking, lumens are ANSI lumens, and projector 3000 lumens are ANSI3000 lumens.

ANSI is the abbreviation of American National Standards Institute. ANSI Lumen is a standard for measuring projector luminous flux formulated by American National Standardization Association. It measures the illuminance of each point of the nine intersections of the screen "Tian" shape, multiplies the area, and then finds the average of the nine points, which is the ANSI lumen of the projector.

The correlation is as follows:

Lumens (symbol lm) is the international unit of luminous flux. It is defined according to Candeira spherical angle (cd times sr). Brightness means that a considerable amount of light is emitted in the unit of 1 spherical angle, and the same amount of energy is emitted from the light source in all directions, and the intensity is 1cd.

The lumen (LM) of ANSI is simply one meter of candle (1 meter = 1? Brightness other than meters).

At the solidification temperature of platinum, the absolute blackbody ranges from 5.305* 10? cm？ The luminous flux radiated in this area is 1lm. In order to show the relationship between light intensity and luminous flux, a point light source with light intensity of 1 Candeira emits luminous flux of 1 lumen in unit solid angle (1 sphericity).

When the light flux of the illuminated object is 1 lumen in the area of 1 square meter, its illuminance is 1 lux. Sometimes, in order to make full use of the light source, a reflective device is often attached to the light source, so that more luminous flux can be obtained in some directions to increase the illumination on the illuminated surface. Such as car headlights, flashlight, photographic lamp, etc.