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- First, business projector purchase skills 1. the brightness should be appropriate Brightness is one of the key points when choosing a business projector. In the complex and changeable environment of business offices and conference venues, the light is generally not ideal, and business projectors can not only be used in dim and small Spaces, but also adapt to bright light environments. Therefore, in order to avoid the strong light interference of the environment, it is necessary to compensate for the brightness of the projector. 1000-2000 lumen range light bulbs, draw the curtains during the day, but also to maintain the viewing effect; At present, the 3000-3500 lumen range of light bulbs is a mainstream bright spot range that can be taken into account. 2, the contrast should be suitable Contrast is also an indicator to take into account, which represents the span between the darkest and brightest parts of the display. The higher the contrast, the clearer and more delicate the image will appear, the better the details of the dark part will be processed, will not show a gray, and in the display of dynamic images, the light and dark conversion faster, the viewer can easily distinguish the conversion process. 3 , the resolution should be appropriate Resolution refers to the pixel points divided by the projection screen, such as 1920*1080, that is, the screen is divided into 1920 pixels horizontally, 1080 pixels vertically, the more pixels, the more delicate the picture. Many people think that the higher the resolution, the better, but generally combined with the input device to choose, business office generally use a laptop to access, and the resolution of the mainstream laptop is usually not up to the full HD level, so the choice of projector must be careful, otherwise not only can not achieve the proper projection effect, but also cause idle and waste of funds and resources. 4 , whether it is convenient to carry If you do not need a fixed installation, you need to carry it when traveling or marketing, you can consider whether the projector is lightweight and can be demonstrated to customers anytime and anywhere. It is recommended that the fuselage be controlled within 3 kg, and if the budget can be ensured, it can be purchased within 2 kg; In addition, the size of the instrument should also be grasped, can not take up too much space, if you can connect the mobile phone demonstration, you can choose the mobile phone projector 5 , take into account the lamp life The service life of the projector bulb is related to the cost of the use of the projector and the maintenance cost, the replacement of the projector bulb is relatively expensive, and the mainstream bulb basically needs two or three thousand yuan. Therefore, when buying a business projector, we should look at its service life, warranty period and after-sales service, which can not only control the cost, but also roughly know the life of the bulb to avoid affecting the work.