Aug 27, 2020
The ViewSonic PX747-4K review is about a high brightness (3500 ANSI Lumens) 4K UHD projector for professional use and entertainment. With a brightness level of 3500 lumens, it provides a guaranteed p...
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ViewSonic PX747-4K vs DBPOWER T20
ViewSonic and DBPOWER
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Common
Product
ViewSonic PX747-4K
DBPOWER T20
Model
PX747-4K
T20
Brand
ViewSonic
DBPOWER
Reviews
529
928
Resolution
Native resolution
3840 x 2160
800 x 480
Max resolution (resized)
3840 x 2160
1920 x 1080
Resolution abbreviation
4K UHD
Full HD
Properties
Projection screen size, inch
60-200
32-176
Projection distance, m/ft
0.9 - 11.6/2.9 - 38
1.5 - 5/5 - 16
Aspect ratio
16:9
16:10
Brightness, lumens
3500
1500
Contrast ratio
12000:1
1000:1
Throw ratio range
1.47:1 - 1.76:1
1.1 - 1.4
Color reproduction
1.07 billion
1.07 billion
Projection system
DLP
Noise level, dBA
27
Power consumption, W
310
50
Features
Remote control
HDR
3D
Security
kensington lock, password protection
password protection
Projection method
front, rear, ceiling mount, tabletop
front, ceiling mount, tabletop
Wireless connection
Additional features
has not
has not
Lamp
Lamp type, W
240
Lamp life (normal mode), hours
4000
Lamp life (eco mode), hours
15000
50000
Connectivity
HDMI
2
1
VGA input
1
1
Composite video input (RCA)
0
1
Audio input (RCA)
0
1
Audio input (3.5mm)
1
0
Audio output (3.5mm)
1
1
SPDIF (optical)
0
0
Ethernet (RJ45)
0
0
MHL
RS-232
0
0
12V trigger
1
0
USB
1
2
USB (service)
1
0
Audio
Integrated speakers
Speaker power, W
10
4
Sound type
mono
stereo
Lens
F-number
Focal length, mm
Lens shift, %
vertical +/- 15
Zoom ratio
1.2x
Settings
Keystone adjustment vertical, +- degrees
40
15
Keystone adjustment horizontal, +- degrees
Operating temperature
Min, C/F
0/32
Max, C/F
40/104
Dimensions
Size W x H x D, сm/inches
33 x 12.7 x 25.4/13.1 x 5.3 x 10.3
7.5 x 5.9 x 3/2.7 x 1.9 x 1.1
Weight, kg/pounds
4.01/8.84
2.2/4.4
Other
Release year
2018
2016
Projectors CHooseratoR comparison rating
- 7.3ViewSonic PX747-4K
- 5.3DBPOWER T20
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