The power of projectors is measured in lumens, and this symbolizes the amount of light they can emit. Miniature models have a range of around 300, while standard ones can go over 3000. Standard projectors generally give the ability to create images on floors that can exceed 200 inches in size, even up to 300. Therefore, they are perfect for use in large or open spaces. The miniature versions, on the other hand, are much more practical to carry because their size and weight are much smaller than the classic models. They manage to create a projection field that can go up to 100 inches. However, the sound quality of these devices tends to be poor, so we recommend purchasing an additional speaker.