High-Definition and Vivid Full HD Projecting high-definition and sharp images with Full HD (1920 x 1200 resolution). Clearly displays detailed tables and graphs in business presentations, making them more expressive. Also suitable for home use, such as watching sports and movies. Bright and Clear Images With a high brightness of 3500 lumens, you can project clear and vivid color images even in a bright room during the day. Maximum Contrast of 10,000:1 Technology Equipped with Dynamic Black™ technology, which increases the contrast ratio to a maximum of 10,000:1. Analyzes the image frame by frame and dynamically adjusts the lamp output to optimize the black level. Reduce Blue Light to Protect Your Precious Eyes Equipped with a blue light shield function that reduces blue light, which causes eye strain, and reduces eye fatigue. Three levels (low, medium, and high) can be selected, cutting up to 30% depending on the content. Gently protects the user's eyes. Acer LumiSense Adjusts for Optimal Viewing Equipped with Acer LumiSense, which analyzes each frame of the projected image and adjusts the image's appearance to the optimal level. Displays dark scenes clearly. Rich Colors with Acer ColorBoost 3D Technology Displays 2D/3D content with natural colors as they are originally. Displays Optimal Colors with a 6-Segment Color Wheel Improves intermediate colors cyan, yellow, and white (CYW) based on the standard RGB (red, green, blue) color space, achieving outstanding color reproduction. Advanced Lamp Illumination Technology Powerful Image Processing Powerful Cinema-Like Sound Built-in 3W speaker. You can output powerful sound, so you can enjoy the immersive sound quality and volume of a movie theater without external speakers. Easy Adjustment of Projection Position to Fit Perfectly Within the Screen Easy adjustment of the projection position so that the image fits perfectly on the screen without adjusting the position of the projector itself. Acer Projector Ceiling Mount Kit Short Type CM-01S (Open Price) Distance from the ceiling: Approximately 11cm Angle adjustment: Horizontal 360° / Up and down ±25° Mounting load capacity: 20kg Everything is great since the lamp was replaced on 8/02-23!