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Category: Grow Lights

link to PPFD Chart for Indoor Crops: Light Targets for Seedlings, Greens, Herbs and Tomatoes

PPFD Chart for Indoor Crops: Light Targets for Seedlings, Greens, Herbs and Tomatoes

A research-based PPFD chart for seedlings, microgreens, lettuce, basil and tomatoes, with the DLI formula, a conversion table and a step-by-step way to hit each target.

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link to Grow Lights for Seed Starting: How to Choose the Right Light (Buyer’s Guide)

Grow Lights for Seed Starting: How to Choose the Right Light (Buyer’s Guide)

How to choose grow lights for seed starting by the numbers: PPF, PPFD, efficacy, LED vs fluorescent, how many watts each tray needs, and how to set them up.

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About Indoor Harvest Lab

Practical, science-based guides to growing food indoors, written by an agricultural scientist and grounded in university extension research and peer-reviewed studies.

Recent Posts

  • Seed Starting Mix Recipe: How to Make a DIY Mix That Actually Works
  • PPFD Chart for Indoor Crops: Light Targets for Seedlings, Greens, Herbs and Tomatoes
  • Microgreens in Winter: How to Keep Trays Growing Fast in a Cold House
  • Growing Wheatgrass at Home: How to Soak, Sow and Harvest in 7–10 Days
  • Microgreens Yield per Tray: Realistic Numbers for 14 Crops (and How to Raise Yours)

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