PROJECTORS
Brightness (Lumens): The brightness of a projector is measured in lumens. Higher lumens typically result in a brighter image. The required brightness depends on factors like the ambient lighting in the room and the size of the screen.
Resolution: The resolution of a projector determines the clarity and level of detail in the projected image. Common resolutions include:
XGA (1024 x 768)
WXGA (1280 x 800)
Full HD (1920 x 1080)
4K UHD (3840 x 2160)
Contrast Ratio: The contrast ratio indicates the difference in brightness between the brightest and darkest parts of an image. A higher contrast ratio generally results in better image quality.
Aspect Ratio: The aspect ratio is the ratio of the width to the height of the image. Common aspect ratios include 4:3 (standard), 16:9 (widescreen), and 16:10. The choice depends on the content you plan to display.
Throw Ratio: The throw ratio determines the distance between the projector and the screen or wall required to achieve a specific image size. It's important to match the throw ratio with your room size and setup.
Keystone Correction: Keystone correction allows you to adjust the image to correct for distortion caused by the angle of projection. Some projectors offer automatic or manual keystone correction.
Zoom: Zoom functionality enables you to adjust the image size without moving the projector. Optical zoom provides better image quality than digital zoom.
Lamp or Light Source Life: Projectors equipped with lamps have a specified lamp life, while LED or laser projectors have a longer lifespan. Lamp replacement can add to the total cost of ownership.
Color Reproduction: Look for projectors with good color accuracy and a wide color gamut for vibrant and accurate colors.
Connectivity: Projectors should have a variety of input and output ports for connecting to different devices. Common ports include HDMI, VGA, USB, and audio in/out.
Built-in Audio: Some projectors include built-in speakers, but for better sound quality, you may want to consider external speakers or audio systems.
Lens Shift: Lens shift allows you to adjust the position of the lens without moving the entire projector. This can be useful for aligning the image precisely.
Network and Control Options: Projectors may have network connectivity for remote management and control, which can be useful in business and education settings.
Wireless Connectivity: Some projectors offer wireless connectivity options like Wi-Fi or Bluetooth for screen mirroring and content sharing.
3D Capability: If you require 3D projection, ensure that the projector supports this feature.
Weight and Size: Consider the physical dimensions and weight of the projector, especially if it needs to be portable.
Mounting and Installation Options: Some projectors are designed for ceiling or wall mounting, while others are more suitable for tabletop use.
