We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact white DLP projector with short-throw lens, front-facing controls and two HDMI ports

OPTOMA

OPTOMA GT2100HDR 4200 lumen 1080p laser home theater projector

SKU CH-ER6Y-BMMWZ MPN GT2100HDR

throw laser projector casts a 100-inch image from a few feet away with 4,200 lumens for lights-on viewing

  • Cabinet ColorWhite
  • TypeDLP
  • Brightness4200
  • Native Resolution1080p Full HD (1920x1080) 1080p 120Hz at 8.6ms 1080p 60Hz 17
  • Maximum Resolution1920 x 1080
  • Aspect Ratio16:9

Option GT2100HDR

  • Bright 4200 lumens let you watch with lights on
  • throw lens projects a 100 inch image from just a few feet
  • Laser light source lasts up to 30000 hours with no lamp changes
  • Gaming ready with 1080p 120Hz at 8.6ms input lag
  • Eco design uses up to 50% recycled plastics and 97% recyclable packaging

What it is and who it is for

The Optoma GT2100HDR is a new DLP home-theatre projector that delivers 4200 lumens at native 1080p resolution. A laser light source rated for 30000 hours removes lamp replacements and keeps power draw low. Its 0.496:1 short-throw lens produces a 100-inch diagonal image from a short distance, suiting living rooms, bedrooms or compact gaming dens where ceiling mounting is impractical.

What it replaces and when the jump is worth it

The solid-state laser engine replaces traditional mercury lamps, cutting power consumption by up to 45 percent and eliminating warm-up time. If you currently run a lamp projector that demands frequent bulb changes or struggles with ambient light, the 4200-lumen output and 300000:1 static contrast make daytime viewing viable without blackout curtains. The external power supply also improves reliability and portability for semi-permanent setups.

Practical limits of the HDMI 2.0 interface

Two HDMI 2.0 inputs accept 4K UHD and HDR signals but downscale them to the native 1920x1080 panel. Gaming at 1080p 120Hz is supported with 8.6ms input lag, while 4K 60Hz content arrives at 17ms latency. The projector cannot display native 4K resolution or refresh rates above 120Hz, and its single 3.5mm audio output requires an external sound system or powered speakers for room-filling audio.

Highlights

  • Bright 4200 lumens let you watch with lights on
  • throw lens projects a 100 inch image from just a few feet
  • Laser light source lasts up to 30000 hours with no lamp changes
  • Gaming ready with 1080p 120Hz at 8.6ms input lag
  • Eco design uses up to 50% recycled plastics and 97% recyclable packaging

Specifications

BrandOptoma
ModelGT2100HDR
Cabinet ColorWhite
TypeDLP
Brightness4200
Native Resolution1080p Full HD (1920x1080)
1080p 120Hz at 8.6ms
1080p 60Hz 17ms
Maximum Resolution1920 x 1080
Aspect Ratio16:9
Contrast RatioContrast ratio 300,000:1
Contrast ratio - dynamic 2,000,000:1
Display Size0.91m ~ 7.42m (36" ~ 292") diagonal
Horizontal Refresh Rate15 ~ 140Khz
Vertical Refresh Rate24 ~ 120Hz
Focal Length7.51
Throw Ratio0.496:1
Throw Distance0.4m - 3.2m
LampLaser
Lamp Life30,000 hours
Input Video CompatibilityPC compatibility 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 ConnectorsInputs 2 x HDMI 2.0
Output Audio Connectors1 x Audio 3.5mm
Network Connectors1 x RJ45
USBUSB-A power 1.5A
Other Connectors1 x RS232
Power SupplyPower supply 100V ~ 240V, 50-60Hz
Power ConsumptionPower consumption (standby) <0.5W
Power consumption (min) 119W
Power consumption (max) 173W
Temperature Range0°C ~ 40°C
Humidity RangeMax. Humidity 80%
Noise LevelNoise level (min) 29dB
Noise level (max) 36dB
DimensionsDimensions (W x D x H) mm 274 x 216 x 114
WeightGross weight 4.2 kg
Net weight 3 kg
Package ContentsAC power cord
Remote control with 1x CR2025 Battery
Basic user manual
Shipping weight4.20 kg
Package size399 × 279 × 155 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How much space do I need to project a 100 inch image with the 0.496:1 throw ratio?

The short throw lens produces a 100 inch picture from roughly 1.2 metres, with a usable throw distance range of 0.4 m to 3.2 m.

What is the correct order for connecting the two HDMI 2.0 inputs and the external power supply during first setup?

Connect the external power supply to the projector first, then plug it into mains power, and finally attach your HDMI sources to the two HDMI 2.0 ports.

When will the laser light source need attention after 30,000 hours of use?

The DuraCore laser is rated for 30,000 hours; after that period brightness will gradually decline and the whole light engine would be serviced rather than a lamp swapped.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.