Optoma GT3900UHD

MSRP$1,899

Optoma GT3900UHD black short-throw projector, front three-quarter view showing the offset short-throw lens and top control panel

Brand	Optoma · GT
Type	Gaming
Released	June 2026
Resolution	4K UHD
HDR formats	HDR10, HLG
Imaging technology	DLP
Light source type	Laser (phosphor)
ISO light output	4,000 lm
Throw ratio	0.5:1
Input lag (rated)	3840×2160 @ 60 Hz: 16.7 ms · 1920×1080 @ 60 Hz: 16.7 ms · 1920×1080 @ 120 Hz: 8.6 ms · 1920×1080 @ 240 Hz: 4.3 ms

A short-throw single-chip DLP laser projector for home theater, gaming and golf simulation, marketed as true 4K UHD (3840x2160) with an ISO 21118 rating of 4,000 lumens. Its fixed 0.496:1 lens fills 100 to 150 inches from about 3.6 to 5.4 feet, it has two HDMI 2.0 inputs (one eARC), a 15 W speaker, a Golf SIM mode, and Optoma rates input lag at 4.3 ms at 1080p/240 Hz.

Data sheet

Picture

Imaging technology	DLP
Technology brand	DLP
Number of imaging devices	1
Native aspect ratio	16:9
Addressable resolution	3840 × 2160
Dynamic contrast	2,000,000:1
Gamma / EOTF presets	2.2, 2.4
Bit depth / 'number of colours'	30 bitDerived
Colour management system	6-axis
ISF certified	Yes
HDR formats	HDR10, HLG
Max refresh rate	1920×1080: 240 Hz · 3840×2160: 60 Hz
Input lag (rated)	3840×2160 @ 60 Hz: 16.7 ms · 1920×1080 @ 60 Hz: 16.7 ms · 1920×1080 @ 120 Hz: 8.6 ms · 1920×1080 @ 240 Hz: 4.3 ms
3D support	Yes
3D sync method	DLP-Link
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential
Glasses included	0

Optics

Throw ratio	0.5:1
Projection distance table	30″: 0.33 m · 40″: 0.44 m · 50″: 0.55 m · 60″: 0.66 m · 70″: 0.77–0.77 m · 80″: 0.88 m · 90″: 0.99 m · 100″: 1.1–1.1 m · 120″: 1.32 m · 150″: 1.65 m · 180″: 1.98 m · 200″: 2.2 m · 250″: 2.75 m · 300″: 3.3 m
Zoom type	None
Focus	Manual
Vertical lens shift	0%
Horizontal lens shift	0%
Fixed offset	114%
Focal length	7.51 mm
F-number	2.8
Image size range	30–150 in
Vertical keystone	-15–15°
Horizontal keystone	-15–15°
Corner / warp correction	Warp

Light source

Light source type	Laser (phosphor)
Light source detail	Laser (Optoma DuraCore)
Light source life	Eco: 30,000 h
Constant brightness mode	Yes
Warm-up time	10 s
Cool-down time	10 s
Light-source dimming	Manual steps
ISO light output	4,000 lm ISO 21118	ISO 21118
Brightness uniformity (centre-to-corner)	75%

Audio

Speaker power	15 W
Speaker count	1
Audio channels	Mono
Audio outputs	3.5 mm, HDMI eARC
HDMI eARC	Yes

Inputs, control & connectivity

Max input signal	3840 × 2160
HDMI port count	2
HDMI ports (feature-level)	HDMI 2.0: HDMI 2.0; HDMI 2.0 (eARC): HDMI 2.0, eARC
Horizontal scan frequency	15–150 kHz
Vertical scan frequency	24–240 Hz
RS-232	Yes
LAN control	Yes
12 V trigger	Yes
PJLink class	Class 1
Control ecosystem drivers	Crestron
Ethernet	Yes

Environment & power

Operating temperature	0–40°C
Operating humidity	10–85%RH
Altitude / high-altitude mode	2,500 m
High-altitude mode	Yes
Operating orientations	Table, Ceiling, Rear, 360°, Portrait
Rated voltage	100–240 V
Rated frequency	50–60 Hz
Power consumption (max)	178 W
Power consumption by mode	Eco: 125 W · Bright: 178 W
Standby power	0.5 W
Power supply	External brick
Fan noise (sound pressure)	Eco: 28 dB(A) · Bright: 35 dB(A)

Physical & installation

Width	274 mm
Depth	216 mm
Height	114 mm
Weight	2.9 kg
Ingress protection	IP6X
Colours / finishes	Black

Support & ownership

Warranty	🇺🇸 US 5 yr or 12,000 h Datasheet figure. ProjectorCentral lists 'Warranty 5 Years'; AVI-SPL's retailer table lists 'Warranty (years): 1'. Optoma's US warranty page (support.optomausa.com) returned 403, so the terms could not be confirmed there.
User manual	https://region-resource.optoma.com/products/documents/CWqYJUpb2tPRrTwMj1QGYRcPXH2q7xeKXHsKXAZ4.pdf
Photobiological risk group	RG2
Hazard distance	1 m
Laser product class	Class 1
Safety & market certifications	FCC, CE

In the box

Box contents	Projector, Remote, Batteries, Power cord, Power adapter, Quick start guide, Warranty card
Remote type	IR
3D glasses in box	0

Tools

Throw calculator — How far from the screen the GT3900UHD needs to sit for a given image size, set to its 0.496:1 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.