lighting
5 entries on file.
- №001pillar · 2026-05-19
How Many Watts of Grow Light Per Plant? A Sizing Guide That Uses Real Numbers
Wattage is the wrong unit, but everyone shops by it. Here's how to translate watts into PPFD, DLI, and actual photons that grow plants — for lettuce, basil, tomato, and more.
- №002pillar · 2026-05-19
Light Spectrum for Hydroponics — What Each Color Actually Does
Blue grows compact leaves, red drives flowering, far-red controls stretch, green penetrates the canopy. A practical breakdown of spectrum without the marketing claims.
- №003pillar · 2026-05-19
Lighting for Seedlings and Microgreens — Low PPFD, High Stakes
Seedlings need less light than people think; microgreens need more than people think. Both fail badly with the wrong fixture. Practical PPFD targets, distance, and what to buy.
- №004pillar · 2026-05-19
Photoperiod and Flowering — How Day Length Controls What Your Plants Do
Plants don't measure daylight — they measure darkness. Short-day, long-day, and day-neutral plants react to photoperiod in opposite ways. Get the schedule wrong and you'll never flower a tomato or strawberry.
- №005pillar · 2026-05-19
PPFD, DLI, and PAR — Hydroponic Lighting Explained
PPFD is light intensity, DLI is daily total, PAR is the wavelength range plants use. This guide turns confusing acronyms into actionable numbers for every crop.