A projector is a device that transfers images in an enlarged form and displays them onto a screen. It is widely used in the corporate setting for projecting presentations onto screens. Apart from its benefits in the business perspective, a projector is also used to enhance home entertainment to another level. We can project movies onto a much larger screen for better viewing experience without the need to remove your original device. It can be connected to a variety of devices, such as video, CDs, DVDs, and computers. There are some factors to consider before purchasing a projector as follows.
Bright and Clear Picture, Determined by Lumens Value
A lumen is a unit of the overall brightness that an LED light bulb inside a projector can produce. The higher the lumen value, the brighter the picture can be projected. If a projector has a high lumen value, it can even be used outdoors. However, it also means that the price of a high-lumen projector becomes much higher. For example, in general cases such as typical rooms in a house, a classroom, or a small meeting room, which only have very little light disturbance, a projector with 1000 to 2000 lumens is sufficient. For a meeting room or a classroom that is much larger, we should consider a projector with 2000 to 3000 lumens instead, which should be high enough to project a larger image at a longer distance. For a theater or a concert hall, a projector with higher than 3000 lumens may be a better choice.
Realistic Smooth Image with High Image Resolution
It is a common knowledge that the picture we see on the screen is made up of little tiny dots closely packed together to form an image. Each dot is called a pixel, where "pix" comes from the word "picture" and "el" comes from the word "element". The number of pixels determines the resolution of the displayed image. SVGA or Super VGA is a resolution of 800x600, giving you an image resolution of 480,000 pixels. It is suitable for giving a presentation that contains general types of graphs in a small room. However, if you would like to display small or detailed figures, numbers, and tables, we recommend XGA or Extended Graphic Array with a resolution of 1024x768 pixels. You will be able to display these small figures at 786,000 pixels, which is more suitable for a medium or a large meeting room. SXGa or Super Extended Graphic Array of 1280x1024 pixels will provide you with a resolution as high as 1,311,000 pixels, suitable for a larger room that requires the display of high details. The highest premium resolution that is available nowadays is UXGA or Ultra Extended Graphic Array of 1600x1200 pixels, giving you a resolution of 1,920,000 pixels. It is the best choice for display image in a very large hall or stadium.
Projector's Throw Distance: The Difference Between Long and Short Throw
A projector's throw distance is the distance between a projector and an image on the screen. It is important to analyze a throw distance as each projector has a different throw distance, depending on usage. A throw distance unit is image size by distance. For example, a throw distance of a projector A indicates that it can display an image from 20 to 200 inches at a length of 2 to 10 meters. This means that projector A can display a 20-inch image at the nearest range of 2 meters, while a 200-inch image can be displayed at the nearest range of 10 meters. If the range exceeds this limit, you will not be able to find the image focus. It is obvious that a throw distance has an effect on the image size.
Sharp Display with Higher Contrast
A contrast value is a ratio that indicates the difference between the brightest and the darkest parts of an image. Typical projectors should have higher than 400:1 contrast ratio for an optimal display of image and video. Especially, if you would like to display an image in a very bright room, a projector with a higher contrast is more suitable. A higher contrast means a sharper display and more viewing dimension.
Projector Lamp Lifetime and Guarantee on Durability
These are the two factors to be considered before buying a projector. You should consider the warranty duration of a projector lamp, which may be in hours or months. Typically, the warranty duration of a projector lamp is around 6 months or 2,000 hours. However, some projector models nowadays even extend their lamp warranty up to 6,000 to 7,000 hours. When there is a problem with a lamp, you will need to pay an extra maintenance fee. Thus, it all depends on how you are going to use your projector. The best solution is to define your utilization before buying. You and only you can tell which projector is the best for your usage. Let Power Buy help you make a decision from your needs.