What to look for when evaluating grow lights for your space
How to Evaluate a Grow Light in 2026: PPFD, DLI, Spectrum, PPE, UV, Far Red, and the Marketing Tricks Nobody Talks About The grow light industry has changed…
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Grow Light Fundamentals
Foundational guides to grow-light terminology, specifications, selection, and fair fixture comparisons.
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Spectrum built. Output measured. ProTerp uses deliberate multi-band spectra, independent control on select channels, and sphere-tested output.
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What is µmol/J, ppf, ppfd, and PPE?
Understanding µmol/J, PPF, PPFD, and PPE Stop Confusing the Numbers One of the biggest problems in the grow-light market today is that people throw around terms like PPF,…
Peak Wavelengths vs. Spectrum Distribution
Spectrum intensity graph for the 600W Evo LED Grow Light, highlighting key peaks at 437 nm (blue) and 660 nm (red). Peak Wavelengths vs. Spectrum Distribution: Understanding the…