Optoma W309ST Data Projector

Indicates whether the product has a coating that blocks ultraviolet (UV) rays at 100 % intensity, protecting skin and eyes from harmful exposure.

The amount of light emitted by a source, measured in lumens (lm). It indicates the brightness level that can be perceived by the human eye and is commonly used for lamps, bulbs, projectors, and other lighting devices.

The pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates how many pixels are used to render the visual content and is commonly applied to monitors, TVs, projectors, laptops, smartphones, and other devices that output video.