Light Requirements for Hydroponic Lettuce: LEDs vs Natural Sunlight
🌱 Key Takeaways Hydroponic lettuce requires 12–16 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: 100–200 µmol/m²/s for seedlings, 200–300 µmol/m²/s for mature lettuce. Supplement natural light with LEDs in winter or shaded environments. To maximize growth … Read more