ProjectorDB

Epson BrightLink 780Ei vs Optoma 4K400x

Optoma 4K400x is quieter, lighter and in stock.

Epson BrightLink 780Ei
Optoma 4K400x$1,399 · Amazon
Buy
Key differences
White light output
4,200 lm ISO—
Throw ratio
0.25–0.35:11.5–1.66:1
Lowest input lag
—4.5 msDerived
HDR formats
—HDR10, HLG
Light source
Laser (phosphor)Lamp
Fan noise
Normal 30 dB(A) · Eco 27 dB(A)Max 28 dB(A) · Normal 26 dB(A)
Best price
—$1,399
Room fit
Distance to screen
0.55–0.77 m3.3–3.7 m
Picture
White light output
4,200 lm ISO—
Colour light output
4,200 lm—
Claimed brightness (non-standard)
—4,000 lm
Brightness uniformity
—80%
Imaging technology
3LCDDLP
Chip / panel diagonal
—0.47 in
Native resolution
1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Pixel shift
Yes (scheme not stated)—
Addressable resolution
—4K UHD (3840 × 2160)
Dynamic contrast
Up to 5,000,000:11,000,000:1
Dynamic contrast method
—Light-source dimming
Gamma / EOTF presets
—2.2, 2.4
Colour temperature presets
—D93, D65, D55, Native
HDR formats
—HDR10, HLG
Tone mapping
—Adjustable
Colour management (CMS)
—6-axis
3D
—Yes
3D formats
—Frame packing
Light source
Light source
Laser (phosphor)Lamp
Lamp power
—240 W
Light-source life
20,000 h normal · 30,000 h eco4,000 h max · 10,000 h eco · 15,000 h dynamic
Life defined as
50% brightness—
Cool-down time
—90 s
Optics
Throw ratio
0.25–0.35:11.5–1.66:1
Image size
60–180 in33–300 in
Projection offset
—105%
Zoom
DigitalOptical
Zoom ratio
—1.11×Derived
Focal length
3.7 mm15.84–17.42 mm
Aperture (f-number)
1.61.98–2.02
Focus
ManualManual
Autofocus
—No
Vertical keystone
3°40°
Horizontal keystone
3°40°
Grid warp
—Yes
Motion & gaming
Max input refresh
—1080p: 240 Hz
Input lag
—1080p: 60 Hz 16.7 ms · 120 Hz 8.9 ms · 240 Hz 4.5 ms · 4K UHD: 60 Hz 16.7 ms
Inputs & control
HDMI inputs
3 × HDMI (HDCP 2.3)2 × HDMI 2.0 (HDCP 2.2)
Max input resolution
—DCI 4K
Audio inputs
Microphone—
Control ports
RS-232RS-232, 12 V trigger
Horizontal scan
—31–135 kHz
Vertical scan
—24–120 Hz
Smart platform
Wi-Fi
Wi-Fi 6E—
Ethernet
Yes—
Casting
Miracast—
Audio
Speaker power
16 W10 W
Speakers
11
Layout
Mono—
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
376 × 396 × 173 mm315 × 270 × 115 mm
Weight
7,031 g4,200 g
Orientations
Table, CeilingTable, Ceiling, Rear
Environment & power
Operating temperature
0–40°C5–40°C
Operating humidity
—10–85%RH
Altitude
—3,000 m · high-altitude mode
Power draw
Normal 270 W · Eco 213 WMax 305 W · Eco 220 W
Standby
0.5 W0.5 W
Networked standby
2 W—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 30 dB(A) · Eco 27 dB(A)Max 28 dB(A) · Normal 26 dB(A)
Safety & support
Risk group
—RG2
Marks
—FCC
Warranty
🇺🇸 US 3 yr · 🇨🇦 CA 3 yr—
User manual
—https://region-resource.optoma.com/products/import/Documents/13cdc4ab-4017-4930-a4fd-d023d407c4fe.pdf
Spare parts
Air filter V13H134A66—
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, Warranty card, USB cablePower cord, Remote, Remote batteries, User manual
Remote
—Backlit
Epson BrightLink 780Ei
Optoma 4K400x$1,399 · Amazon
Buy