1. Product Overview
The AC Infinity Heavy-Duty Humidity Dome 5x8 Germination Kit is engineered to create an optimal high-humidity environment for successful seed starting and plant cloning. This comprehensive kit includes a robust 3mm thick clear dome, full-spectrum LED grow light bars with Samsung LM301H EVO diodes, an adjustable heat mat, and durable trays with optional height extension panels.

Figure 1: Complete AC Infinity Heavy-Duty Humidity Dome 5x8 Germination Kit.
2. Components
Your AC Infinity Germination Kit includes the following items:
- Heavy-Duty Humidity Dome (3mm thick) with Vented Panels
- Full Spectrum LED Grow Light Bars (with Samsung LM301H EVO Diodes)
- Seedling Heat Mat with Adjustable Dial Controller
- Drip Trays
- Plant Trays (supports up to 40 seedlings)
- Height Extension Panels (optional)

Figure 2: Exploded view of the germination kit components, illustrating seamless fit assembly.
3. Setup
- Place Heat Mat: Position the seedling heat mat on a flat, stable surface in your desired indoor location. Ensure the surface is protected from potential water spills.
- Assemble Trays: Place the drip tray on top of the heat mat. Insert the plant trays into the drip tray. If growing taller plants, attach the optional height extension panels to the base of the dome before placing it.
- Install LED Light Bars: Secure the LED grow light bars into the designated slots or clips on the underside of the humidity dome. Ensure they are firmly in place.
- Position Humidity Dome: Carefully place the assembled humidity dome over the plant trays. The dome should fit snugly to create a sealed environment.
- Connect Power: Plug the heat mat and LED light bars into appropriate power outlets (100-240V, 50/60Hz).
Video 1: This video demonstrates how to control the climate for optimal seed growth using the AC Infinity Germination Kit, including setup and operation of its various components.
4. Operating Instructions
4.1. Humidity Control
The clear, heavy-duty dome features adjustable vents on the top and sides. These vents allow you to precisely regulate the humidity levels within the germination chamber. Open the vents to decrease humidity and close them to increase humidity, creating the ideal microclimate for your seedlings or clones.

Figure 3: Close-up of the adjustable humidity control vents on the dome.
4.2. Heat Mat Operation
The seedling heat mat includes an adjustable dial controller. This allows you to set and maintain a consistent temperature for the root zone, which is crucial for accelerating germination and promoting healthy root development. Adjust the dial to your desired temperature setting based on the specific needs of your plants.

Figure 4: The heat mat controller with an adjustable dial for temperature regulation.
4.3. LED Grow Light Bars
The full-spectrum LED grow light bars feature high-efficiency Samsung LM301H EVO diodes, providing powerful and uniform lighting for all growth stages. The included controller allows for programmable ON/OFF and SCHEDULE modes, along with ten adjustable intensity levels. This enables you to customize the lighting schedule and intensity to suit your plants' requirements.

Figure 5: The schedule controller for the LED grow light bars, showing programmable settings.
Video 2: This video provides detailed information about the AC Infinity IONBEAM Grow Light Bars, highlighting their features and versatility.
5. Maintenance
To ensure the longevity and optimal performance of your germination kit, follow these maintenance guidelines:
- Cleaning: Regularly clean the humidity dome and trays with a mild soap solution and warm water. Rinse thoroughly and dry completely before reuse. Avoid abrasive cleaners that could scratch the plastic.
- Inspection: Periodically inspect the LED light bars and heat mat for any signs of damage or wear. Ensure all electrical connections are secure.
- Storage: When not in use, store the kit components in a clean, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
If you encounter any issues with your germination kit, refer to the following common troubleshooting tips:
- Poor Germination: Ensure the heat mat is set to the correct temperature for your seed type. Verify that the humidity levels are appropriate (typically high for germination) and that seeds are fresh and viable.
- Light Issues: Check if the LED light bars are properly connected to the power supply and controller. Ensure the controller is set to an active ON or SCHEDULE mode and that the intensity is adequate for your plants.
- Excessive Condensation: This is normal in a high-humidity environment. If condensation is excessive and dripping onto plants, slightly open the dome vents to increase airflow and reduce humidity.
- Lack of Humidity: Ensure the dome is properly sealed on the trays. Check that the vents are closed. You may need to add a small amount of water to the drip tray to increase ambient humidity.
7. Specifications
| Feature | Detail |
|---|---|
| Model | AC-HMX5 |
| Material | PS Plastic, PET Plastic, PP Plastic, Multilayer PVC, Glossy Finish |
| Color | Full Kit, Black |
| Product Dimensions | 17"D x 13"W x 6"H |
| Tray Thickness | 3 mm |
| Vents | 4 (with extender) |
| Cell Count | 40 |
| LED Diodes | Samsung LM301H EVO |
| Accepted Voltage Frequency | 100 to 240 Volts and 50 Hertz to 60 Hertz |
| Item Weight | 6.8 pounds |
| UPC | 819137023413 |

Figure 6: Detailed specifications and dimensions of the germination kit components.
8. Warranty and Support
AC Infinity products are designed for durability and performance. For warranty information, product registration, or technical support, please visit the official AC Infinity website or contact their customer service directly. Keep your purchase receipt for warranty claims.
For further assistance, please visit the AC Infinity Store on Amazon.





