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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

  • Cabinet ColorWhite
  • TypeDLP
  • Brightness3500
  • Native ResolutionUHD (3840x2160) 1080p 120Hz at 8.6ms 1080p 60Hz 17ms
  • Maximum Resolution3840 x 2160
  • Aspect Ratio16:9

Option 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.

Highlights

  • 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

Specifications

BrandOptoma
ModelUHZ35ST
Cabinet ColorWhite
TypeDLP
Brightness3500
Native ResolutionUHD (3840x2160)
1080p 120Hz at 8.6ms
1080p 60Hz 17ms
Maximum Resolution3840 x 2160
Aspect Ratio16:9
Contrast Ratio500,000:1
Display Size36" ~ 300" diagonal
Horizontal Refresh Rate15 ~ 140Khz
Vertical Refresh Rate24 ~ 120Hz
Focal Length7.51
Throw Ratio0.496:1
Throw Distance15.75" - 129.92"
LampLaser
Lamp Life30,000 hours
Input Video CompatibilityPC compatibility UHD, FHD, UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac
2D compatibility NTSC M/J, 3.58MHz, 4.43MHz PAL B/D/G/H/I/M/N, 4,43MHz
SECAM B/D/G/K/K1/L, 4.25/4.4MHz 480i/p, 576i/p,
720p(50/60Hz), 1080i(50/60Hz), 1080p(50/60Hz)
3D compatibility Yes (DLP 3D; PC frame sequential 120Hz 3D, Blu-ray DVD 3D)
3D Full 3D
Input Video Connectors1 x HDMI 2.0, 1 x HDMI 2.0 (eARC)
Output Audio Connectors1 x Audio 3.5mm
Network Connectors1 x RJ45
USBUSB-A power 1.5A
Other Connectors1 x RS232
Power SupplyExternal power supply, 100V ~ 240V, 50-60Hz
Power ConsumptionPower consumption (standby) <0.5W
Power consumption (min) 126W
Power consumption (max) 185W
Temperature Range0°C ~ 40°C
Humidity RangeMax. Humidity 80%
Noise LevelNoise level (min) 28dB
Noise level (max) 35dB
DimensionsDimensions (W x D x H) 10.79" x 8.5" x 4.49"
WeightGross weight 9.26 lbs
Net weight 6.61 lbs
Package ContentsAC power cord
Remote control with 1x CR2025 Battery
Basic user manua
Shipping weight4.20 kg
Package size399 × 279 × 155 mm

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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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