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White compact short-throw laser projector, rectangular with rounded edges, front lens centered, top control panel, rear ports visible

OPTOMA

OPTOMA UHZ35ST 3500 Lumens 4K UHD Short-Throw Laser Business Projector

SKU CH-RAYV-KEERX MPN UHZ35ST

throw laser projector delivering 3500-lumen 4K UHD images up to 300 inches with 240 Hz gaming at 4.4 ms response

  • Screen diagonal36 in ~ 300 in diagonal
  • Image brightness3500
  • Power draw(standby) <0.5 W Power consumption (min) 126 W Power consump
  • Panel resolutionUHD (3840 × 2160) 1080p 120 Hz at 8.6 ms 1080p 60 Hz 17 ms
  • Highest resolution3840 × 2160
  • Screen ratio16:9

Model UHZ35ST

  • Bright 3500 lumens for clear viewing with lights on
  • True 4K UHD resolution at 3840x2160 with HDR and HLG support
  • throw 0.496:1 lens projects large images from close range
  • 1080p 240Hz gaming at 4.4ms response for ultra-low latency
  • Laser light source rated 30000 hours for virtually maintenance-free operation

Compact Laser Projector for Lit Rooms

The OPTOMA UHZ35ST is a short-throw DLP laser projector built for business presentations and home entertainment in bright environments. Its 3500-lumen output allows lights-on viewing without washing out the 3840 x 2160 UHD image. A 0.496:1 throw ratio projects a 36 to 300 inch diagonal picture from just 15.75 to 129.92 inches away. The external power supply keeps the white cabinet compact and supports flexible 360-degree or portrait installation.

Thermal Profile and Power Efficiency

The DuraCore laser light source is rated for 30,000 hours of virtually maintenance-free operation, removing the recurring cost and downtime of lamp replacements. An external power brick moves heat and bulk away from the projection head, contributing to a smaller footprint and quieter running in meeting rooms or living spaces. The laser engine reaches full brightness quickly and maintains stable output across the supported 24 to 120 Hz vertical refresh range without the warm-up delay typical of lamp models.

Connectivity and Streaming Expansion

Two HDMI 2.0 ports handle UHD sources, with one supporting eARC for simplified audio return to a sound system. A 3.5 mm audio output provides a direct analogue feed for speakers or headphones. Wireless streaming is not built in, but a USB-A port supplies up to 1.5 A to power an optional media dongle, adding smart-TV features without a separate wall outlet. The projector accepts a wide list of PC and video formats including 480i/p, 576i/p, 720p, and 1080i at 50 or 60 Hz.

How it compares

Measured against everything we stock in Presentation Projectors, at today’s prices. Recalculated every night.

Price $2,607.99
Pricier than about 90% of the 608 comparable items (median $157.99).
Screen diagonal 36 in ~ 300 in diagonal
Lower than about 74% of the 141 comparable items (median 110 in).

Specifications

Product
Brand nameOptoma
Model nameUHZ35ST
Case colorWhite
Product typeDLP
Display
Screen diagonal36 in ~ 300 in diagonal
Image brightness3500
Panel resolutionUHD (3840 × 2160)
1080p 120 Hz at 8.6 ms
1080p 60 Hz 17 ms
Highest resolution3840 × 2160
Screen ratio16:9
Contrast500,000:1
Horizontal scan rate15 to 140 kHz
Vertical frequency24 to 120 Hz
Projection ratio0.496:1
Projection distance15.75 in - 129.92 in
Light sourceLaser
Lamp lifespan30,000 h
Audio & video
Lens focal length7.51
Connectivity
Network connection1 x RJ45
Ports & slots
Video input typesPC compatibility UHD, FHD, UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac
2D compatibility NTSC M/J, 3.58 MHz, 4.43 MHz PAL B/D/G/H/I/M/N, 4,43 MHz
SECAM B/D/G/K/K1/L, 4.25/4.4 MHz 480i/p, 576i/p,
720p(50/60 Hz), 1080i(50/60 Hz), 1080p(50/60 Hz)
3D compatibility Yes (DLP 3D; PC frame sequential 120 Hz 3D, Blu-ray DVD 3D)
3D Full 3D
Video inputs1 x HDMI 2.0, 1 x HDMI 2.0 (eARC)
Audio outputs1 x Audio 3.5 mm
USB portsUSB-A power 1.5A
Power
Power draw(standby) <0.5 W
Power consumption (min) 126 W
Power consumption (max) 185 W
Power supplyExternal power supply, 100 V ~ 240 V, 50-60 Hz
Size & build
Product dimensions(W × D × H) 10.79 in × 8.5 in × 4.49 in
Product weightGross weight 9.26 lb
Net weight 6.61 lb
Shipping weight4.20 kg
Package size399 × 279 × 155 mm
In the box
In the boxAC power cord
Remote control with 1x CR2025 Battery
Basic user manua
Environment & compliance
Temperature range0 °C to 40 °C
Humidity limitsMax. Humidity 80%
Operating noise(min) 28 dB
Noise level (max) 35 dB

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Questions about this item

How do I install the UHZ35ST short-throw projector, and what is the step most people get wrong?

Place the projector 15.75" to 129.92" from the screen for a 36" to 300" image using the 0.496:1 throw ratio. The step often missed is enabling the 360° or portrait orientation in the menu when mounting at an angle.

What maintenance or replacement will the UHZ35ST need later?

The DuraCore laser light source is rated for 30,000 hours and is virtually maintenance-free. No lamp replacements are required. Only occasional lens cleaning and dust filter checks are needed over its lifespan.

What limit shows up first on the UHZ35ST during sustained use?

The external power supply and compact chassis manage heat for continuous operation. The first practical limit is the fixed 4K 60Hz refresh rate at 17ms latency; higher frame rates require dropping to 1080p 240Hz at 4.4ms.

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