Epson PowerLite 1940W User Manual - Page 167
Projector Lamp Specifications, USB Type A port compatibility
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Noise level 37 dB (Normal Power Consumption mode) 29 dB (ECO Power Consumption mode) Keystone correction angle PowerLite 1940W/1950/1960: Vertical: ± 30º (manual or Auto Keystone) Horizontal: ± 30º (manual or Horizontal Keystone slider) PowerLite 1945W/1955/1965: Vertical: ± 30º (manual); ± 30º (using Auto Keystone or Screen Fit) Horizontal: ± 30º (manual); ± 20º (using Auto Keystone or Screen Fit) USB Type B port compatibility USB 1.1 and 2.0 compliant for USB display or external mouse USB Type A port compatibility PowerLite 1940W/1950/1960: One USB 1.1 and 2.0 compliant port for USB device input or EPSON document camera display PowerLite 1945W/1955/1965: One USB 1.1 and 2.0 compliant port for USB device input One USB 1.1 and 2.0 compliant port for EPSON document camera display Parent topic: Technical Specifications Projector Lamp Specifications Type Power consumption Lamp life UHE (Ultra High Efficiency) 245 W Normal Power Consumption mode: Up to about 2500 hours ECO Power Consumption mode: Up to about 4000 hours Note: Turn off this product when not in use to prolong the life of the projector. Lamp life will vary depending upon mode selected, environmental conditions, and usage. Brightness decreases over time. 167