
AC Infinity 72-cell light-and-mat dome kit
The 72-cell dome kit combines LED bars, trays and a heating mat when a complete seed-starting setup is the project.
Read our takeFour 11-inch full-spectrum LED bars with a dimming and timer controller.
The short bars are appealing for a compact growing setup where flexible placement matters more than one large overhead panel.
The short bars are appealing for a compact growing setup where flexible placement matters more than one large overhead panel. Plan the tray, watering access, and the equipment around it as a complete arrangement before filling the shelf with seedlings.
Use the settings and placement allowed by the instructions.
Keep the electrical connections appropriately arranged around watering.

The 72-cell dome kit combines LED bars, trays and a heating mat when a complete seed-starting setup is the project.
Read our take
The IONBOARD S33 is a 260W dimmable panel with a stated 3-by-3-foot footprint instead of four short light bars.
Read our takeFour 11-inch LED bars with ten intensity levels and schedule control.
Choose the setting and placement for the crop and stage of growth, following the equipment instructions.
Product information checked 2026-10-29. Our assessment uses the linked specifications and manuals; it does not represent a hands-on test. Editorial standards & corrections.