The EL-YU455U is an ultra-short-throw 3LCD laser projector built for business and education rooms. Its 0.235:1 throw ratio places a large picture from 0.3–0.8 m away from the wall, so the unit sits on or beside the screen surface instead of on a ceiling mount across the room. It is rated at 4,500 ANSI lumens on a native WUXGA 1920 * 1200 panel, driven by a laser light source rated for 20,000 hours in normal mode, with a glass F1.7 lens and a built-in 16 W speaker.
The 0.235:1 throw ratio is the point of this model. The projector sits directly against the screen, 0.3–0.8 m away, and fills 80 to 120 inches. There is no long beam across the room for a presenter or a student to walk through, and no ceiling mount to install — the unit sits low and aims at the wall, which is how a boardroom or a classroom gets a large picture without re-wiring the room.
The brightness is stated as an ANSI figure: 4,500 ANSI lumens. That holds an image readable with the room lights on or the blinds open, which is where most business and education projection actually happens. Paired with a 500,000:1 contrast ratio, it keeps text crisp and dark scenes from washing grey.
The panel is native WUXGA 1920 * 1200, a 16:10 frame with extra vertical height for documents, spreadsheets and slides, and it is compatible with 4:3 and 16:9 sources. The projector accepts up to 4K input and scales it to the native panel. Three 0.64 inch LCD panels carry red, green and blue separately, so colour brightness tracks white brightness and there is no colour wheel to break the image in front of a camera.
The laser light source is rated for 20,000 hours in normal mode, which removes the lamp replacement schedule from a classroom or a meeting room that runs all day. There is no built-in battery and the unit is a fixed installation body, so it stays where it is mounted and keeps working.
The EL-YU455U is specified for business and education. The built-in 16 W * 1 speaker removes a separate sound source for a standard room, and the glass F1.7 lens with manual zoom and focus holds the picture sharp without motorised complexity. Noise is rated at 37 dB in normal mode and 27 dB in eco, quiet enough for a lesson or a presentation.
The projector supports multiple signal sources for direct projection. The exact input and output terminal list is confirmed against the order specification before shipping — send us the source equipment and we will confirm the port configuration.
Send us the model, the screen size and the room layout, and we will confirm the throw and the port configuration before you order.
