Many gardeners struggle to germinate seeds at home because they do not have the equipment to ensure the right amount of light, heat, and water. LetPot’s SS-Pro seedling system is one such device that makes it easy to grow plants from seed, even in winter, by automatically controlling temperature and light. Once you have started the device, you do not have to worry about starting your seeds; it does all on its own.
LetPot SS-Pro combines light and heat in one easy-to-use unit without the need for extra cords. Made with strong, eco-friendly materials, its tray prevents water leaks while its light panel resists moisture with a special coating. The humidity dome features an inverted-edge design with adjustable vents that allow you to fine-tune airflow and humidity.
Equipped with a 24W enclosed heating coil and an independent 48W certified power supply, the system automatically adjusts day-night temperatures to mimic plants’ optimal growing conditions. If the temperature sensor detects abnormally high heat, the system shuts off immediately. There is also a height-adjustable, 180-degree foldable light panel to deliver even coverage across the tray, and you can choose from two brightness levels to prevent leggy growth. The lighting system provides strong and even illumination, even without the humidity dome.
The LetPot SS-Pro has soil sensors that keep the temperature just right for seed growth, even if the room is cold. It mimics natural day and night temperatures for optimal growth. You can also check real-time nutrient and temperature data through the mobile app. According to the maker, the SS-Pro smart seed starter offers two times faster germination speed compared to traditional trays.
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The LetPot SS-Pro has Auto Mode, or you can fine-tune the settings manually as per your plants’ needs. You can adjust temperature, lighting, and schedules via the responsive touchscreen or remotely through the LetPot app. Other key features include real-time monitoring, environment history, and reminder alerts.
Each automatic seed starter kit includes a 40-cell tray and a full set of grow trays. The SS-Pro automatic seed starter kit is available for pre-order on Kickstarter starting at $89, with delivery expected in November 2025.
