ENERGY STAR Partner |
Dell Inc. |
Dell Inc. |
Product Category |
Displays |
Displays |
Type |
Signage Display |
Monitor |
Brand Name |
DELL |
DELL |
Model Name |
C5518QT |
U3821DW |
Model Number |
C5518QTt |
U3821DWb |
Date Available On Market |
May 22, 2017 |
January 28, 2021 |
Date Certified |
July 16, 2019 |
September 11, 2020 |
Markets |
United States, Switzerland, Taiwan, Japan, Canada |
United States, Switzerland, Taiwan, Japan, Canada |
CB Model Identifier |
ES_29573_C5518QTt_07172019115418_6123578 |
ES_29573_U3821DWb_09112020155748_2987444 |
Meets ENERGY STAR Most Efficient 2024 Criteria |
No |
No |
Product Type |
Signage Display |
Monitor |
Panel Type |
IPS LCD |
IPS LCD |
Native Resolution (pixels) |
3840 x 2160 |
3840 x 1600 |
Total Native Resolution (megapixels) |
8 |
6.1 |
Screen Size |
54.6 inches / 138.68 cm |
37.5 inches / 95.25 cm |
Screen Area (square inches) |
1275.7 inches / 3240.28 cm |
499.76 inches / 1269.39 cm |
Model Features |
Full Network Connectivity,Touch Screen,Built-In Speakers |
Variable Refresh Rate,Curved Screen,Full Network Connectivity,USB-C,Built-In Speakers |
Features Enabled in Default On Mode |
Full Network Connectivity,Touch Screen,Built-In Speakers |
Variable Refresh Rate,Full Network Connectivity,Built-In Speakers |
Features Enabled in Default Sleep Mode |
Full Network Connectivity |
Full Network Connectivity |
Signal or Data Interfaces |
Display,HDMI,RS232,VGA,Other,RJ45,USB |
RJ45,Display,HDMI,USB |
Power Source |
Ac to dc internal power supply |
Ac to dc internal power supply |
On Mode Power (watts) |
77 |
33.46 |
Maximum On Mode Power Limit for Signage Certification (watts) |
99 |
N/A |
Sleep Mode Power (watts) |
1 |
0.41 |
Maximum Sleep Mode Power Limit for Signage Certification (watts) |
4 |
N/A |
Off Mode Power (watts) |
0 |
0.17 |
Maximum Luminance (candelas per square meter) |
350 |
300 |
Enhanced-Performance Display? |
No |
Yes |
Color Gamut |
0 |
42.8 |
Color Spaces Supported |
None |
sRGB |
High Dynamic Range (HDR) |
N/A |
N/A |
Display Contrast Ratio at 0 deg. Horiz. Viewing Angle |
1,200 |
1000 |
USB-C with Power Delivery Supported |
No |
Yes |
Tiled Display System |
No |
No |