Continuous learning through long-lasting projection. The ultra-short throw ratio and laser technology ensure outstanding image quality. The IP5X dust-protected mechanism reduces maintenance costs. The deviation-free alignment of the laser diodes increases the light flow in the light tunnel and enhances the light output to 4,000 lumens. Two synchronized color wheels use an additive yellow segment and precisely stimulate RGBY spectra for optimal chromatic performance. The DLP chip consists of over two million micro-mirrors that reflect pure light through the color wheel and is hermetically sealed, making it heat-resistant for over 100,000 hours without degradation. The LW890UST features color wheel sensors with an advanced function to prevent dust accumulation, which can build up on conventional sensors and block the IR signal, leading to flickering, abnormal colors, or even shutdown.