ViewSonic LS740-4K

MSRP$1,799.99

ViewSonic LS740-4K white laser projector, front view with lens and top keypad

Brand	ViewSonic
Type	Installation
Resolution	4K UHD
HDR formats	HLG
Imaging technology	DLP
Light source type	Laser (phosphor)
ANSI lumens	5,000 lm
Throw ratio	1.4–2.24:1

A laser-phosphor single-chip DLP installation projector rated at 5,000 ANSI lumens with a 3840x2160 image, a 1.6x optical zoom and a 1.4-2.24 throw ratio. It has two HDMI 2.0 inputs, RJ45 and RS-232 control, a sealed optical engine, and a 15 W speaker, and suits meeting rooms, classrooms and golf simulators.

Data sheet

Picture

Imaging technology	DLP
Number of imaging devices	1
Chip / panel diagonal	0.65 in
Native aspect ratio	16:9
Native resolution	3840 × 2160
Dynamic contrast	3,000,000:1
Bit depth / 'number of colours'	30 bit
HDR formats	HLG
Max refresh rate	1920×1080: 240 Hz · 2560×1440: 120 Hz · 3840×2160: 60 Hz
3D support	Yes
3D sync method	DLP-Link
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential

Optics

Throw ratio	1.4–2.24:1
Throw reference point	Lens
Projection distance table	30″: 0.93–1.49 m · 40″: 1.24–1.98 m · 50″: 1.55–2.48 m · 60″: 1.86–2.98 m · 70″: 2.17–3.47 m · 80″: 2.48–3.97 m · 90″: 2.79–4.46 m · 100″: 3.1–4.96 m · 110″: 3.41–5.46 m · 120″: 3.72–5.95 m · 130″: 4.03–6.45 m · 140″: 4.34–6.94 m · 150″: 4.65–7.44 m · 200″: 6.2–9.92 m · 250″: 7.75–12.4 m · 300″: 9.3–14.88 m
Zoom type	Optical
Zoom ratio	1.6×
Focus	Manual
Fixed offset	124%
Image size range	30–300 in
Vertical keystone	-30–30°
Horizontal keystone	-30–30°
Corner / warp correction	Warp

Light source

Light source type	Laser (phosphor)
Light source detail	Laser Phosphor
Light source life	Normal: 20,000 h · Super eco: 30,000 h
ANSI lumens	5,000 lm ANSI	ANSI

Audio

Speaker power	15 W
Speaker count	1
Audio outputs	3.5 mm

Inputs, control & connectivity

Max input signal	3840 × 2160
HDMI port count	2
HDMI ports (feature-level)	HDMI 1: HDMI 2.0, HDCP 2.3; HDMI 2: HDMI 2.0, HDCP 2.3
Horizontal scan frequency	15–135 kHz
Vertical scan frequency	24–240 Hz
RS-232	Yes
LAN control	Yes
Ethernet	Yes

Environment & power

Operating temperature	0–40°C
Operating humidity	10–80%RH
Altitude / high-altitude mode	3,658 m
High-altitude mode	Yes
Operating orientations	Table, Ceiling, Portrait, 360°
Rated voltage	100–240 V
Rated frequency	50–60 Hz
Power consumption by mode	Typical: 165 W
Standby power	0.5 W
Power supply	External brick
Fan noise (sound pressure)	Normal: 32 dB(A) · Eco: 27 dB(A)

Physical & installation

Width	286 mm
Depth	216 mm
Height	129 mm
Weight	3.1 kg
Ingress protection	IP6X
Sealed optical engine	Yes
Air filter	None

Support & ownership

Warranty	🇺🇸 US 3 yr
User manual	https://www.viewsonicglobal.com/public/products_download/user_guide/projector/LSD500-4K/LSD500-4K_LS740-4K_UG_ENG.pdf
Photobiological risk group	RG2
Hazard distance	1 m
Laser product class	Class 1
Safety & market certifications	CE, FCC

In the box

Box contents	Projector, Power cord, Power adapter, Remote control, Batteries, Quick start guide
Remote type	IR

Tools

Throw calculator — How far from the screen the LS740-4K needs to sit for a given image size, set to its 1.4–2.24:1 lens.
Download spec as CSV — Every value on this data sheet with its unit and source, one row per spec.
Download spec as JSON — The same data from the open data API, with variants and identifiers.