Optoma HD82 Serivce Manual page 38

4. Use ''Image-Shift'' to re-write Lamp
Hours
- Use "left" and "right" key of the ''image-
shift'' to re-write "Lamp Hours".
Note: press ''left'' key of the 'image-shift'', the
lamp hour will increase 20 hours;
press ''right'' key of the ''image-shift'',
the lamp hour will decrease 20 hours.
5. Chose"Exit"
Left
HD82/HD8200 Confidential
Right
2-0