The Lite Series are highly competitive digital whiteboards that also offersthebasic AI features of the Pro Series, such as Handwriting Recognition(*only ST420). For education or business scenarios, the lite series integrates practical functions that make writing, browsing the web, operating APPs, file management, remote meetings, etc.,easier than ever.

Educational Software Compatibility
Effectively assists teachers in each teaching workflow, including easy lesson preparation, interesting class organization, and timely performance assessments. It encourages students to participate fully in class activities such as games and quizzes and inspires them to explore.

Easy Screen Sharing
One-tap wireless screen sharing allows users to present and explore ideas across devices in real-time. It supports up to 9 split screens to encourage participation. The 4K UHD display brings a super clear visual experience.

Dahua Technology DHI-LPH75-ST420. Display diagonal: 75", Display brightness: 400 cd/m², Display number of colors: 1.07 billion colors. Operating system installed: Android, Processor frequency: 1.9 GHz, Maximum internal memory: 64 GB. Speaker power: 15 W. Top Wi-Fi standard: Wi-Fi 5 (802.11ac), Wi-Fi standards: 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac). Interface: HDMI, USB connector type: Micro-USB, Microphone connectivity: 3.5 mm

Display diagonal	75"
Touchscreen	Yes
Display brightness	400 cd/m²
Display number of colors	1.07 billion colors
Display resolution	3840 x 2160 pixels
HD type	4K Ultra HD
LED backlighting type	Direct-LED
Native aspect ratio	16:9
Contrast ratio (typical)	1200:1
Response time	8 ms
Maximum refresh rate	60 Hz
Touch technology	Multi-touch
Touchscreen type	Infrared
Number of simultaneous touchpoints	40
Touch resolution	32767 x 32767 pixels
Touch system response time	10 ms
Touch object size (min)	0.0787" (2 mm)
Viewing angle, horizontal	178°
Viewing angle, vertical	178°
Screen glass thickness	0.157" (4 mm)
Surface material	Tempered glass
Hardness	8H
Accuracy touch	1 mm
Operating system installed	Android
Operating system version	11
Built-in processor	Yes
Processor frequency	1.9 GHz
Processor cores	4
Maximum internal memory	64 GB
User memory	64 GB
RAM capacity	8 GB
Built-in speaker(s)	Yes
Number of built-in speakers	2
Speaker power	15 W
Built-in projector	No
Wi-Fi	Yes
Top Wi-Fi standard	Wi-Fi 5 (802.11ac)
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Bluetooth	Yes
Bluetooth version	5.2
Ethernet LAN	Yes
Interface	HDMI
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	4
Interface module USB 3.2 Gen 1 (3.1 Gen 1) Type-B ports quantity	4
USB connector type	Micro-USB
HDMI ports quantity	4
USB Type-C ports quantity	2
USB Type-C DisplayPort Alternate Mode	Yes
HDMI output ports quantity	1
USB Power Delivery	Yes
Ethernet LAN (RJ-45) ports	2
VGA (D-Sub) ports quantity	1
Line-in	Yes
Line-out	Yes
S/PDIF out port	Yes
Microphone connectivity	3.5 mm
Audio output	1
RS-232 ports	1
Product color	Black
VESA mounting	Yes
Panel mounting interface	600 x 400 mm
Wall mountable	Yes
Certification	CE, CB, Energy Star, ERP, RoHS, WEEE
Ambient light sensor	Yes
Power consumption (max)	300 W
Power consumption (typical)	150 W
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Windows operating systems supported	Yes
Mobile operating systems supported	Android
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90%
Storage temperature (T-T)	-10 - 50 °C
Storage relative humidity (H-H)	10 - 90%
Width	67.2" (1707.5 mm)
Height	41.3" (1050 mm)
Depth	36.6" (930 mm)
Weight	114.6 lbs (52 kg)
Package width	70.9" (1800 mm)
Package depth	7.87" (200 mm)
Package height	45.9" (1165 mm)
Package weight	14.3 lbs (6.5 kg)
Quantity per pack	1 pc(s)
Cables included	HDMI, Power
Handheld remote control	Yes
Mounting brackets included	Yes
Quick start guide	Yes
Stylus included	Yes
Stylus pen type	Passive
Sustainability certificates	ENERGY STAR, ErP
Compliance certificates	CB, CE, RoHS, WEEE
Sustainability compliance	Yes