LED grow lights are energy-efficient artificial lighting fixtures designed to emit specific light spectra that drive plant photosynthesis. Modern full-spectrum LEDs replace or supplement sunlight in indoor and vertical farming systems, delivering targeted wavelengths β primarily red and blue β that plants use most efficiently.
Key Facts
- Full-spectrum LEDs cover 380β750 nm, mimicking natural sunlight
- Red light (630β660 nm) drives flowering and fruiting; blue (430β460 nm) drives vegetative growth
- Up to 70% more energy-efficient than HPS or fluorescent grow lights
- Produce minimal heat compared to HID lights, reducing cooling costs
- Lifespan of 50,000+ hours β significantly longer than HPS bulbs
- Key metric is PPFD (Β΅mol/mΒ²/s) β the amount of usable light reaching the plant canopy