Light Source Life Span - Epson EB-1470Ui User Manual

Adjusting the Brightness
Display level Estimated remaining hours
0 to 1999 hours
The number of hours displayed as Estimated Remains is just a guide.
a

Light Source Life Span

The estimated life span of the light source varies depending on the Brightness
Level setting and whether Constant Brightness is on or off.
• The light source life span varies depending on the environmental
a
conditions and usage.
• The hours listed here are an approximate and are not guaranteed.
• After 20,000 hours of use, you may need to replace parts in the
projector.
• If Constant Brightness is turned on, and you have exceeded the
usage hours listed here, you may not be able to select a high
Brightness Level setting.
Constant Brightness off
Brightness level
Time before the brightness of the light source is reduced by half (approximate)
B
Brightness Level setting Hours
100% 20000 hours
90% 21000 hours
80% 24000 hours
70% 30000 hours
Constant Brightness on
Brightness level
Time the projector can maintain constant brightness (approximate)
B
Brightness Level setting Hours
85% 6000 hours
80% 10000 hours
70% 19000 hours
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