Will I have to recalibrate everything immediately after I replace my original bulb? Asked by Dave P. On Aug 15, 2019 You don't have to recalibrate your unit Once you replace the bulb. From your lamp earth, I am capable of just get three or 4 bulbs about that ten https://epsonprojectorbulbhours98765.blogpixi.com/36959875/the-5-second-trick-for-change-light-bulb-epson-projector