Valerion StreamMaster Plus2
#8 in 4KFull review
A smart RGB laser 4K projector for movie fans and gamers who want rich color and low lag without a separate streamer.
Amazon $1,199$1,199
The Valerion StreamMaster Plus2 is the better projector overall, rated 4.4 to 4.2. The Valerion StreamMaster Plus2 leads on gaming. The Nebula Cosmos 4K SE costs $99.01 less ($1,099.99 vs $1,199).
Nebula Cosmos 4K SE
#11 in 4KFull review
A bright 4K Google TV projector for living rooms and gaming that you can move between rooms. It is a step up in brightness from most portables.
Amazon $1,099.99$1,099.99
Prices were last checked October 29, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Valerion StreamMaster Plus2 for gaming (4 ms input lag vs 19 ms input lag).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 4K projector; a clear win is highlighted. How we rank explains each one.
| Factor weight | Valerion StreamMaster Plus2 | Nebula Cosmos 4K SE |
|---|---|---|
| Overall rating | 4.4/5 | 4.2/5 |
| Brightness 25% | 67 2,000 ISO lumens | 62 1,800 ANSI lumens |
| Value 15% | 82 $0.60 per lumen | 82 $0.61 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 100 Google TV with licensed Netflix | 100 Google TV with licensed Netflix |
| Setup 10% | 60 Autofocus, auto keystone | 60 Autofocus, auto keystone |
| Light life 10% | 100 25,000 hour RGB laser | 100 30,000 hour hybrid laser |
| Gaming 10% | 100 4 ms input lag | 74 19 ms input lag |
| Warranty 5% | 50 2-year warranty | 50 warranty not published (neutral score used) |
Specifications
| Valerion StreamMaster Plus2 | Nebula Cosmos 4K SE | |
|---|---|---|
| Picture | ||
| Brightness | 2,000 ISO | 1,800 ANSI |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 4K (pixel shift from 1920x1080) |
| Display | DLP | DLP |
| Light source | RGB laser | hybrid laser |
| Light source life | 25,000 hours | 30,000 hours |
| HDR | Dolby Vision, HDR10, HLG | Dolby Vision |
| Color gamut | 110% Rec.2020 | 123.3% Rec.709 |
| Native contrast | 3,000:1 | - |
| Dynamic contrast | 10,000:1 | - |
| Placement | ||
| Throw | Standard throw (1.2:1) | Standard throw (1.2:1) |
| Largest image | 300 in | 200 in |
| Autofocus | Yes | Yes |
| Auto keystone | Yes | Yes |
| Obstacle avoidance | Yes | Yes |
| Auto screen fit | Yes | Yes |
| Optical zoom | None | - |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | Google TV, licensed Netflix |
| Input lag | 4 ms | 19 ms |
| Top refresh rate | 240 Hz | - |
| HDMI ports | - | 2 |
| eARC | - | Yes |
| Speakers | 24 W | 30 W |
| Build | ||
| Battery | None | None |
| Dimensions | 9.2 x 10.23 x 7.3 in (W x D x H) | 263 x 165 x 265 mm |
| Weight | 16.5 lb | 9.9 lb |
| Warranty | 2 years | - |
| Released | 2025-02-20 | 2024-09-05 |