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Choose Your Dome
Three variants. Same proven design. Pick the one that matches your growing style.
Entry
Dark Dome
Pure simplicity. Just you and the fungi.
$49Kit price — or download free STL files and print your own
- Passive Airflow
- Smoked Polycarbonate
- Quarter-Turn Bayonet
- 3D Printable
StandardMOST POPULAR
The Void
Where science meets the aesthetic.
$79Kit price — includes PCB, LEDs, and all hardware
- UV-C Sterilization
- 5 Light Modes
- Hardware Safety Interlock
- USB Powered
Premium
Void Core
The smart dome that grows with you.
$299Kit price — includes ESP32, sensors, fan, humidifier, and all electronics
- ESP32 Controller
- BME280 Sensors
- Automated Humidity
- Active FAE
- +2 more
SPECIFICATIONS
Side by Side
Feature
Dark Dome$49
The Void$79
Void Core$299
Price
$49
$79
$299
UV-C
No
Yes (15-min)
Yes (app-scheduled)
Lighting
None
5 modes
App-controlled
Airflow
Passive
Passive
Active (PWM fan)
Humidity
Manual
Manual
Automated (PID)
Controller
None
ATtiny85
ESP32 (WiFi)
Sensors
None
None
BME280 suite
Power
None
USB (<1.5W)
USB-C PD (15W)
App/Dashboard
No
No
Yes (WiFi)
Safety Interlock
N/A
Hardware
Hardware + firmware
| Feature | Dark Dome$49 | The Void$79 | Void Core$299 |
|---|---|---|---|
| Price | $49 | $79 | $299 |
| UV-C | No | Yes (15-min) | Yes (app-scheduled) |
| Lighting | None | 5 modes | App-controlled |
| Airflow | Passive | Passive | Active (PWM fan) |
| Humidity | Manual | Manual | Automated (PID) |
| Controller | None | ATtiny85 | ESP32 (WiFi) |
| Sensors | None | None | BME280 suite |
| Power | None | USB (<1.5W) | USB-C PD (15W) |
| App/Dashboard | No | No | Yes (WiFi) |
| Safety Interlock | N/A | Hardware | Hardware + firmware |
Not Sure Which Dome?
Most growers start with The Void. It has everything you need and nothing you don't.
Every dome is open source under CERN-OHL-P-2.0. Build it yourself or back the project.
Browse Build Docs →