Categorized in the Homecinema segment, the LCD 4100 projector from Ampro projects with a HDTV 1280 x 720 resolution, alongside 1250 ANSI lumens and a contrast of 800:1. According to Ampro, the included lamp lasts up to 1500 hours. To ensure a rectangular image even with asymmetrical placement, the projector includes digital keystone correction for both the horizontal and vertical axes. Looking at practical performance, up to 359 cm can be illuminated with 1250 ANSI lumens in dark environments. Once daylight is in the room, the image should ideally be no wider than 239 cm. Regarding noise emissions, the model proves to be exceptionally quiet during operation, producing just 30 decibels. This is a discontinued model that is no longer officially distributed by Ampro.