Epson EF21 - Projector Light Source Specifications

102
Projection distance
(in native aspect ratio)
24 to 134 inches (0.61 m to 2.4 m) for 30 to 150 inches (0.8 m to 3.8
m) diagonal screen size
Projection methods Front, Front Ceiling, Rear, Rear Ceiling
Optical aspect ratio
(width-to-height)
16:9
Focus adjustment Automatic
Auto Keystone Correction -
Real Time
Throw distance: approx 28 to 87 inches (70 to 220 cm)
Screen size: 30 to 100 inches (76 to 254 cm)
Internal sound system EF21
5W × 2 speakers (Stereo)
EF22
5W × 2 speakers (Stereo with passive radiators)
Fan noise level EF21
23 dB (Normal power consumption)
19 dB (ECO power consumption)
EF22
22 dB (Normal power consumption)
18 dB (ECO power consumption)
USB Type A port compatibility One USB 2.0 compliant port for connecting a USB mass storage
device, microphone, human interface device, or web camera
USB Type mini-B port
compatibility
One USB 2.0 compliant port for service
Parent topic: Technical Specifications
Projector Light Source Specifications
Type Laser diode
Light source output power Up to 24.5 W
Wavelength 449 to 461 nm