Epson EB‑535W Edu‑Short Throw LED Projector

The frequency of the alternating current supplied to a power supply or charger, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the device, ensuring proper functionality and safety.

The range of alternating current voltage that the product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device across different regions.

The proportion between the width and height of a display, image or video, expressed as two numbers separated by a colon (e.g., 16:9). It indicates whether content is designed for widescreen, square, or other aspect ratios.

The amount of light emitted by a display or projector, expressed in lumens (cd/m² for luminance). It indicates how bright the screen will appear under typical viewing conditions.

Indicates whether the product includes built‑in speaker(s) that can produce sound without requiring external audio devices. A value of "Yes" means the device has one or more integrated speakers; a value of "No" means it does not.

The total number of integrated speaker units present in the product. This value indicates how many separate speaker elements are built into the device, helping users compare audio capabilities across models.

The electrical power rating of a light bulb or lamp, expressed in watts (W). It indicates the amount of energy the bulb consumes during operation or the maximum output it can deliver to connected equipment.

A list of software applications, operating systems, drivers, or utilities that are pre-installed or bundled with the product. The values may include antivirus suites, productivity tools, device management utilities, and other essential software components.

Indicates whether the product includes a slot for inserting a cable lock, such as a Kensington or similar security device.

Specifies the type of interface or mechanism used to secure a cable in its port, such as Kensington, Noble, IBM, or other standard lock slots. This attribute helps users identify compatibility and security features of the device.

A list of the cable types that are supplied with the product, such as USB, HDMI, VGA, DisplayPort, LAN (RJ‑45), SATA, audio or other relevant connectors.

Indicates whether the device includes a built‑in card reader that can read removable memory cards such as SD, microSD, MMC or similar formats.

The colour or combination of colours that a product’s outer shell or enclosure is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the case for consumers.

The total count of component (YPbPr) video input ports available on the device, indicating how many separate analog video signals can be connected simultaneously.

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

The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.

The type of display panel used in a visual device, such as LED‑backlit LCD, IPS, TN, VA, OLED, or AMOLED. It indicates the underlying technology that determines image quality, color accuracy, viewing angles, response time and power consumption.

The type of visual panel or display technology used in a product, such as LCD, LED, OLED, TFT, IPS, AMOLED, or analog. It indicates the underlying technology that determines image quality, color reproduction, power consumption and suitability for different use cases.

Indicates whether the product includes an Ethernet LAN interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.

Maximum theoretical speed at which a device can send or receive data over its Ethernet LAN interface, expressed in megabits per second (Mbps) or gigabits per second (Gbps). It represents the upper bound of throughput under optimal conditions and is useful for comparing network performance between devices with wired connectivity.

Specifies the focusing behavior of a camera or imaging device, indicating whether it uses automatic focus, manual focus, or a combination such as auto‑manual. The value is expressed as a free‑text string that describes the mode in use.

Indicates whether the product is capable of displaying or transmitting video at Full HD resolution (1920 × 1080 pixels). A value of "Yes" means that Full HD functionality is supported, while a value of "No" indicates it is not available.

Indicates whether a handheld device can be operated from a distance using an external remote control such as infrared, Bluetooth or Wi‑Fi. A value of "Yes" means the product supports remote operation; "No" indicates it does not.

Indicates whether the product is capable of displaying or supporting full‑high‑definition (Full‑HD) video content, typically defined as a resolution of at least 1280×720 pixels without loss of quality. A value of "Yes" means the device can handle Full‑HD formats; "No" indicates it does not support this standard.

The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.

The measurement of a display’s diagonal, expressed in inches or centimeters. It indicates the overall visual area available for content and is commonly used to compare monitors, televisions, laptops, tablets, and other electronic devices.

The horizontal keystone correction angle specifies the range of degrees by which a projector or screen can adjust horizontally to correct image distortion without loss of clarity. It is expressed as a minimum‑maximum value, such as –30° to +30°, and applies to any device that supports keystone adjustment.

The total operating hours a lamp can provide before it needs replacement, expressed in units of time such as hours or days.

A list of the functions or statuses that an LED indicator on a device can display, such as power status, activity, link, and other operational signals.

A concise textual summary of the camera lens’s key characteristics, such as focal length, aperture range, autofocus type, zoom capability or special features. The value can be a single phrase (e.g., "31mm f/9") or a brief sentence describing the lens system (e.g., "Autofocus system via 2 fixed focus zones 0.55m-1.3m, 0.6m-infinity"). It is intended to give buyers quick insight into what type of lens is included with the product.

The classification of a camera lens, indicating its optical design and intended use such as prime, zoom, wide‑angle, telephoto, macro or specialty types (e.g., fisheye, polarizing). It helps buyers understand the lens’s focal range, aperture characteristics, and typical shooting scenarios.

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.

Indicates whether a user manual—physical or digital—is provided with the product. A value of "Yes" means that a manual is included, while a value of "No" indicates that no manual is supplied.

Indicates whether the product includes at least one built‑in microphone. A value of "Yes" means that the device has an integrated microphone, while "No" indicates it does not.

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 visual content and is commonly applied to monitors, TVs, projectors, laptops, tablets, and smartphones.

The sound intensity produced by a product while operating in its economic or low‑power mode, expressed in decibels (dB). This value indicates how quiet the device is during energy‑saving operation and helps users assess suitability for quiet environments.

The total count of distinct colours that a display can render, typically expressed in millions or billions. This figure reflects the colour depth and determines how smoothly gradients and subtle hues are reproduced on the screen.

The range of temperatures in which a product can safely operate without risk of damage or performance degradation. Values are expressed in degrees Celsius (°C) and may represent a single temperature, a minimum–maximum interval, or an average operating point.

The type of optical disc player included in the product, such as DVD‑player, Blu‑ray‑player, or no optical disc player. It indicates whether the device can read or play optical media and specifies the particular model or capability when available.

The method or combination of methods used to secure a device or system with a password, such as requiring a password on boot, during user login, or for supervisor access. It indicates which security steps are enabled and can be listed separately.

A list of the positions or mounting options where a product can be installed, such as indoor, outdoor, wall, desk, floor, ceiling, or universal. Each value represents a distinct placement scenario that the device supports.

The electrical power drawn by a device while operating in its economy or energy‑saving mode, expressed in watts (W). This value indicates the typical energy usage when the product is set to reduce consumption during normal operation.

The type of electrical supply that powers the device, such as mains electricity, batteries, USB power, or a combination of these options.

A list of predefined operating settings that a projector can use to optimize image quality, performance or convenience. Each value represents a selectable mode such as "Cinema", "Presentation", "Game" or combinations of these themes. The list allows users to quickly choose a configuration that matches the intended use case.

The amount of light emitted by a projector when operating in its low‑power or energy‑saving mode, expressed in lumens (cd/m² for luminance). This value indicates how bright the screen will appear under typical viewing conditions while conserving energy.

The method or mechanism used to operate a device remotely, such as infrared (IR), Bluetooth, Wi‑Fi, radio frequency, or wired connections. It indicates how the user can send commands to the product from a distance.

The pixel dimensions that a product’s screen can output or support, expressed as width by height (e.g., 1920x1080). It indicates how many pixels are used to render visual content and is commonly applied to monitors, TVs, projectors, and other display devices.

Represents the total count of RJ‑45 Ethernet interfaces present on a product. Each port can accept a standard Ethernet cable for wired network connectivity.

The root‑mean‑square (RMS) power rating of a device, expressed in watts (W). It represents the average electrical power that the product can deliver or consume under normal operating conditions.

The diagonal measurement ranges of screens that the product can project or display, expressed in millimeters and/or inches. It indicates the minimum and maximum screen sizes that the device is designed to handle.

Indicates whether a product includes a dedicated Kensington lock slot, which is a physical opening designed to accept a Kensington-style cable lock or similar locking mechanism for preventing unauthorized removal or theft of the device.

The type of serial communication interface supported by the product, such as RS‑232, RS‑485, RJ‑45, or SATA. It indicates which physical connectors and protocols are available for data exchange with other devices.

The total operating hours a lamp can provide before it needs replacement when operated in an energy‑saving or low‑power mode, expressed in units of time such as hours.

Indicates the type of audio system integrated into a speaker or audio device, such as stereo, mono, or an integrated sound system.

The total count of speaker units that are integrated into the product, whether they are internal or mounted externally as part of the device’s design. This value helps customers compare audio capabilities across models and determine how many separate sound sources a device provides.

The range of relative humidity (expressed as a percentage) within which the storage device is designed to operate reliably. Values are given as a minimum–maximum interval such as "10 - 90 %" and indicate the acceptable environmental moisture level for optimal performance.

The range of temperatures in which a device can safely operate without risk of damage or performance degradation. Values are expressed in degrees Celsius (°C) and may represent a single temperature, a minimum–maximum interval, or an average operating point.

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.

The proportion between the distance from a projector to its screen and the width of the projected image, expressed as a simple ratio such as 2:1 or 1.5:1. It indicates how far the projector must be placed to achieve a desired screen size and is useful for planning installation space.

Represents how many TVI (Television Interface) connectors are present on the product. The value is a simple integer indicating the total count of TVI ports, regardless of version or configuration.

The type(s) of USB connector(s) present on a device, such as Micro‑USB, USB Type‑C, USB Type‑A, or combinations thereof. This attribute indicates the physical ports that can be used for data transfer, charging, or peripheral connectivity.

The range of vertical scan frequencies that a display device can support, expressed in hertz (Hz). It indicates the minimum and maximum refresh rates at which the screen updates vertically, affecting visual smoothness and stability.

Specifies the type of VGA output connector on a device, such as "1 x 15-pin D-Sub" or "1 x VGA Out". This attribute indicates the physical connector used for video output and is applicable to projectors, docking stations, document cameras, and other electronic equipment that provide a VGA interface.

The length of time for which the manufacturer guarantees that the product will be free from defects in materials and workmanship, typically expressed in years or months.

The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.

The proportion between the distance from a projector to its screen and the width of the projected image, expressed as a simple ratio such as 2:1 or 1.5:1. It indicates how far the projector must be placed to achieve a desired screen size and is useful for planning installation space.