Advantages: 1, long projector life, energy saving and environmental protection compared with ordinary traditional projection bulbs. 2. The projector has low cost and good experience. 3. The projector has good color saturation and good light color. 4, small size, easy to carry. It is more convenient to go out to work. Disadvantages: 1, the overall brightness is not very bright. 2, when using, there must be a large space to show the big screen playback effect.