An ideal way to start your garden! You're in full control with this germination station. Includes 72-cell seedling insert, 11” x 21” watertight base tray, 2” humidity dome, UL-listed waterproof heat mat 19.5” x 9” (17 watts, 120 volt) and instructions with growing tips. The vented plastic dome means better humidity control for optimum growth, and having everything in one, heatable space leads to healthier growth starts and increased germination success. Browse our selection of seeds to buy and plant. Simply add your own choice of seeds, growing media or plugs to begin growing. For more heat control buy our compatible heat mat thermostat #H122.