Light Requirements for Hydroponic Lettuce: LEDs vs Natural Sunlight
đ± Key Takeaways Hydroponic lettuce requires 12â16 hours of light daily. LED grow lights provide consistency, spectrum control, and year-round growing. Natural sunlight is cost-free but less predictable and climate-dependent. Ideal light intensity: 100â200 ”mol/mÂČ/s for seedlings, 200â300 ”mol/mÂČ/s for mature lettuce. Supplement natural light with LEDs in winter or shaded environments. To maximize growth … Read more