In the meantime, samSung D300, D400, L300 these 3 machines the high resolution of 768 deduces 1024 × high-definition picture is qualitative, picture administrative levels feels stronger, the person that let watch takes every meticulous picture, won't miss serious content. The 600 resolution of 800 × of SamSung P400 are pocket change in projector reveal quality; The brightness of 150 lumen also is the biggest brightness in pocket projector. In the meantime, these 4 machines deploy many interface, satisfy different need, the consideration is more considerate, use more convenient. The bulb life performance of 2500 hours of above is more excellent, in the meantime, close design changes when bulb simple and convenient, save time, improve efficiency.