// Definition
Wavelengths of light beyond the red end of the visible spectrum (700-780nm) used in cannabis LED cultivation to manipulate plant stretch and flowering responses. Powerful but easy to misuse — too much far-red too early can stunt or ruin plants.
// From the Episode
Bubbleman described using far-red to stretch shorter sections of canopy up to match the rest. SPEAKER_04 shared a cautionary experience: 'When I first got far red LEDs, you can really ruin some [plants].' Thomas from Grandmaster LED compared giving an advanced spectrum-tunable light to an inexperienced grower to giving an F1 car key to a novice driver.