Epson PowerLite 1288 4000-Lumen Full HD 3LCD Projector with Wi-Fi - Manual (Page 207)

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Brightness PowerLite E20:
High Power Consumption mode:
White light output 3400 lumens (ISO 21118 standard)
Color light output 3400 lumens
ECO Power Consumption mode:
White light output 2200 lumens (ISO 21118 standard)
Note: Color brightness (color light output) and white brightness
(white light output) will vary depending on usage conditions. Color
light output measured in accordance with IDMS 15.4; white light
output measured in accordance with ISO 21118.
PowerLite X49:
High Power Consumption mode:
White light output 3600 lumens (ISO 21118 standard)
Color light output 3600 lumens
ECO Power Consumption mode:
White light output 2400 lumens (ISO 21118 standard)
Note: Color brightness (color light output) and white brightness
(white light output) will vary depending on usage conditions. Color
light output measured in accordance with IDMS 15.4; white light
output measured in accordance with ISO 21118.
PowerLite W49:
High Power Consumption mode:
White light output 3800 lumens (ISO 21118 standard)
Color light output 3800 lumens
Medium Power Consumption mode:
White light output 3700 lumens (ISO 21118 standard)
Color light output 3700 lumens
ECO Power Consumption mode: