EK-818U is the WUXGA large class 1chip DLP Projector which is 4K and HDR (High Dynamic Range) supported. This model provides virtually maintenance-free operation and reduces the total cost of ownership by sealed optical engine design (IP5X) which is protection against dust without filter, and laser light source with 20,000 hours life. With above features, 6 optional lenses and useful installation functions are suitable for digital signage, auditoriums, large conference rooms, museums, events, theaters, houses of worship, hotels, etc.