Optoma ZH551

Brand	Optoma
Type	Installation
Released	October 2025
Resolution	1080p
HDR formats	HLG
Imaging technology	DLP
Light source type	Laser (phosphor)
ISO light output	5,600 lm
Throw ratio	1.4–2.24:1
Input lag (rated)	1920×1080 @ 60 Hz: 17 ms · 1920×1080 @ 120 Hz: 8.6 ms · 3840×2160 @ 60 Hz: 16.9 ms

A compact single-chip DLP laser projector with 1920x1080 native resolution and a rated 5,600 ISO lumens, aimed at classrooms, meeting rooms and fixed installs. It has a 1.6x manual zoom, vertical lens shift, 360-degree and portrait mounting, two HDMI 2.0 inputs, RJ45, RS232 and 12V trigger control, and Miracast wireless sharing through an included dongle.

Data sheet

Picture

Imaging technology	DLP
Technology brand	DLP
Number of imaging devices	1
Chip / panel model	S600 DMD (0.65-inch, 1080p)
Chip / panel diagonal	0.65 in
Native aspect ratio	16:9
Native resolution	1920 × 1080
Dynamic contrast	3,000,000:1
Colour management system	6-axis
HDR formats	HLG
Input lag (rated)	1920×1080 @ 60 Hz: 17 ms · 1920×1080 @ 120 Hz: 8.6 ms · 3840×2160 @ 60 Hz: 16.9 ms Low Latency Mode on; geometry correction (keystone, four corners) is disabled in this mode. The manual table also lists 1080p240 at 4.4 ms, left out because the datasheet's vertical scan rate tops out at 120 Hz.	Low Latency Mode on; geometry correction (keystone, four corners) is disabled in this mode. The manual table also lists 1080p240 at 4.4 ms, left out because the datasheet's vertical scan rate tops out at 120 Hz.
3D support	Yes
3D sync method	DLP-Link
3D formats	Side-by-side, Top-bottom, Frame sequential, Frame packing

Optics

Throw ratio	1.4–2.24:1
Projection distance table	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 · 120″: 3.72–5.95 m · 145″: 4.49–7.19 m · 160″: 4.96–7.93 m · 180″: 5.58–8.93 m
Zoom type	Optical
Zoom ratio	1.6×
Focus	Manual
Vertical lens shift	103–118%
Motorized lens shift	No
Focal length	20.91–32.62 mm
F-number	2.5–3.26
Image size range	28–145 in
Vertical keystone	-30–30°
Horizontal keystone	-30–30°
Corner / warp correction	4pt

Light source

Light source type	Laser (phosphor)
Light source detail	Laser
Light source life	Eco: 30,000 h
Cool-down time	90 s
ISO light output	5,600 lm ISO 21118	ISO 21118
Brightness uniformity (centre-to-corner)	75%

Audio

Speaker power	15 W
Audio channels	Mono
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; HDMI 2: HDMI 2.0
Horizontal scan frequency	15.38–135 kHz
Vertical scan frequency	23.97–120 Hz
VGA input	Yes
RS-232	Yes
LAN control	Yes
12 V trigger	Yes
PJLink class	Class 1
Control ecosystem drivers	Crestron
Ethernet	Yes

Firmware / software

Casting

Miracast

Environment & power

Operating temperature	0–40°C
Altitude / high-altitude mode	3,048 m
High-altitude mode	Yes
Operating orientations	Portrait, 360°
Rated voltage	100–240 V
Rated frequency	50–60 Hz
Power consumption by mode	Eco: 200 W · Bright: 230 W 110 V input, ±15%; 220 V figures are 195 W (eco) and 225 W (bright)	110 V input, ±15%; 220 V figures are 195 W (eco) and 225 W (bright)
Standby power	0.5 W
Fan noise (sound pressure)	Min: 28 dB(A) · Max: 33 dB(A)

Physical & installation

Width	274 mm
Depth	216 mm
Height	114 mm
Weight	2.9 kg
Ingress protection	IP6X (optical engine)

Support & ownership

Warranty	🇺🇸 US 3 yr
Light-source warranty	5 years or 12,000 hours
User manual	https://region-resource.optoma.com/products/documents/sj3ba9jjcgNo3jqZNW4eSSqXsUgO3XnIzHgAsT4w.pdf
Photobiological risk group	RG2
Hazard distance	1 m
Laser product class	Class 1
Safety & market certifications	FCC

In the box

Box contents	Power cord, Remote, Batteries, Wifi dongle, Quick start guide
Remote type	IR

Tools

Throw calculator — How far from the screen the ZH551 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.