Optoma X309ST data projector Short throw projector 3700 ANSI Lumens

The contrast ratio is the proportion between the brightest and darkest luminance a display can produce, expressed as a simple fraction such as 1000:1. It indicates how well a screen or projector can differentiate light from dark areas, affecting image clarity and color depth.

Cantidad total de conectores HDMI físicos disponibles en el producto para la transmisión digital de audio y vídeo.

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

The main illumination source used by the product, such as LED, laser, CCFL, or other light-emitting technologies. It indicates whether the device uses a single light source or multiple sources and helps users understand the lighting characteristics of the item.

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.

The chemical composition of a battery that determines its performance, energy density, and suitability for different applications. Common chemistries include Lithium‑Ion, Nickel‑Metal Hydride, Alkaline, Lead‑Acid, and others.