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- Cosmos 4K SE vs UHZ66
Nebula Cosmos 4K SE vs Optoma UHZ66
What Cosmos 4K SE does better (2) and where UHZ66 wins (5) — every spec side by side.
vs
4.9Picture8.9
9.2Setup & placement6.1
7.9Noise, lifetime & portability8.8
Dimensions
Size comparison
Cosmos 4K SEUHZ66
| Cosmos 4K SE | UHZ66 | Difference | |
|---|---|---|---|
| Height | 221 mm | 114 mm | +107 mm |
| Width | 264 mm | 274 mm | −10 mm |
| Depth | 165 mm | 216 mm | −51 mm |
| Weight | 4.5 kg | 3 kg | +1.5 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Cosmos 4K SE better than UHZ66?
- Automatic keystone correctionYes · UHZ66: No
- Built-in speakers (total output)30 W vs 15 W2×
Why is UHZ66 better than Cosmos 4K SE?
- Brightness (ANSI / ISO lumens)1,800 lm vs 4,000 lm2.2×
- HDMI inputs1 vs 22×
- Ethernet (LAN)No · Cosmos 4K SE: Yes
- Largest image size200″ vs 303″+51%
- Weight4.5 kg vs 3 kg+50%
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 3840 × 2160 (4K UHD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | 4K by pixel shifting | 4K by pixel shifting |
| Display technology | DLP | DLP |
| Light source | Laser + LED hybrid | Laser |
| Brightness (ANSI / ISO lumens) | 1,800 lm | 4,000 lm |
| Contrast ratio (dynamic / claimed) | — | 500,000:1 |
| HDR support | Yes | Yes |
| HDR formats | HDR10, HLG, Dolby Vision | — |
| Dolby Vision | Yes | — |
| Gaming | ||
| Maximum refresh rate | — | 240 Hz |
| Game / low-latency mode | Yes | Yes |
| Lens & placement | ||
| Throw ratio | 1.2:1 | 1.4:1 |
| Throw ratio (zoomed in) | — | 2.24:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.66 m | 3.1 m |
| Smallest image size | 50″ | 26″ |
| Largest image size | 200″ | 303″ |
| Optical zoom | — | 1.6× |
| Lens shift | — | None |
| Autofocus | Yes | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 30 W | 15 W |
| Smart & streaming | ||
| Smart platform | Google TV | — |
| Built-in smart platform | Yes | — |
| Netflix (officially licensed) | Yes | — |
| Wi-Fi | Yes | — |
| Bluetooth | Yes | — |
| Chromecast built-in | Yes | — |
| Internal storage | 16 GB | — |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| HDMI eARC | — | Yes |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | — | 185 W |
| Light source life | 30,000 h | 30,000 h |
| Design & noise | ||
| Fan noise | 30 dB | 30 dB |
| Fan noise (eco mode) | — | 28 dB |
| Weight | 4.5 kg | 3 kg |
| Width | 264 mm | 274 mm |
| Height | 221 mm | 114 mm |
| Depth | 165 mm | 216 mm |
| Colours | Grey | White |








