The amount of lumens you require is determined by a variety of factors. The size of the screen, for starters, is essential. Generally, the larger the screen, the further away you must place the projector. As a result, more lumens will be necessary to guarantee that the picture appears correctly on larger screens. Second, ambient lighting is essential. Fewer lumens are required because there is no ambient light affecting the image when utilizing the projector in a pitch-black environment. If you're going to utilize the projector in a brighter environment, you'll need more lumens to achieve a brilliant, vivid image.