Table 20. Battery specifications(continued)
Description Option one Option two Option three Option four
CAUTION: Dell recommends that you charge the battery regularly for optimal power consumption. If your
battery charge is completely depleted, connect the power adapter, turn on your computer, and then restart
your computer to reduce the power consumption.
Display
The following table lists the display specifications of your Latitude 3550.
Table 21. Display specifications
Description Option one Option two Option three
Display type
15.6-inch, High Definition
(HD)
15.6-inch, Full High Definition
(FHD)
15.6-inch, Full High Definition
(FHD)
Touch options
No No Yes
Color
262,144 262,144 262,144
Panel type
6 bit 6 bit 6 bit
Display-panel technology
Twisted nematic In Plane Switching (IPS) In Plane Switching (IPS)
Display-panel dimensions
(active area):
Height
344.16 mm (13.55 in.) 344.16 mm (13.55 in.) 344.16 mm (13.55 in.)
Width
193.59 mm (7.62 in.) 193.59 mm (7.62 in.) 193.59 mm (7.62 in.)
Diagonal
394.87 mm (15.54 in.) 394.87 mm (15.54 in.) 394.87 mm (15.54 in.)
Display-panel native
resolution
1366 x 768 1920 x 1080 1920 x 1080
Luminance (typical)
220 nits 250 nits 250 nits
Megapixels
1.05 2.07 2.07
Color gamut
45% (NTSC) 45% (NTSC) 45% (NTSC)
Pixels Per Inch (PPI)
100 141 141
Contrast ratio (typical)
500:1 700:1 700:1
Response time (max)
25 ms 35 ms 35 ms
Refresh rate
60 Hz 60 Hz 60 Hz
Horizontal view angle
45 +/- degrees 85 +/- degrees 85 +/- degrees
Vertical view angle
35 +/- degrees 85 +/- degrees 85 +/- degrees
Pixel pitch
0.252 (H)*0.252 (V) 0.17925 (H)*0.17925 (V) 0.17925 (H)*0.17925 (V)
Power consumption
(maximum)
4.2 W 4.6 W 4.7 W
Specifications of Latitude 3550 25