Sitemap
Every page on this site — 79 of them — grouped by section. The machine-readable version is at /sitemap.xml, and new pages appear in the feed.
Grow Lights for Seed Starting
/seed-starting — 9 pages
- The Best Grow Lights for Seed Starting Roundup
- Best Budget Grow Lights for Seed Starting Roundup
- How Far Should Grow Lights Be From Seedlings? Guide
- How Much Light Do Seedlings Actually Need? Guide
- Do You Need a Grow Light to Germinate Seeds? Guide
- T5 Fluorescent vs LED for Seed Starting Comparison
- Shop Light vs Grow Light for Seedlings Comparison
- Grow Light Shelf Setup for Seed Trays Guide
- Grow Lights for Tomato Seedlings Guide
Grow Lights for Houseplants and Winter
/houseplants — 11 pages
- The Best Grow Lights for Indoor Plants Roundup
- The Best Grow Lights for Winter Roundup
- The Best Grow Lights for Large Indoor Plants Roundup
- Clip Light vs Panel vs Bar Comparison
- How Much Light Do Houseplants Need in Winter? Guide
- Winter Daylight Loss, and What to Add Back Guide
- Grow Lights for Monstera Guide
- Grow Lights for Succulents Guide
- Grow Lights for Orchids Guide
- Grow Lights for Herbs Indoors Guide
- Grow Lights for Microgreens Guide
Spectrum and PPFD, Honestly
/spectrum-and-ppfd — 9 pages
- The Best Full Spectrum Grow Lights Roundup
- What “Full Spectrum” Actually Means Guide
- Full Spectrum vs Red and Blue Comparison
- PAR, PPFD and DLI, Explained Guide
- Grow Light vs Regular LED Bulb Comparison
- Grow Light vs Window Light Comparison
- Kelvin vs Spectrum for Seedlings Guide
- Are Grow Lights Safe for Eyes and Pets? Guide
- Do Grow Lights Emit UV? Guide
Coverage and Sizing Math
/coverage-and-sizing — 9 pages
- Grow Light Coverage Calculator Calculator
- The Best Grow Lights for a Shelf or Rack Roundup
- What Size Grow Light Do I Need? Guide
- How Far Should a Grow Light Be From Plants? Guide
- PPFD Targets by Plant Type Reference
- Grow Light Hours Per Day, by Plant Reference
- How Many Grow Lights for a 4 × 4 Area? Guide
- Bar vs Panel Coverage and Uniformity Comparison
- How to Measure PPFD Without a Meter Guide
Running Cost and Efficiency
/running-cost — 9 pages
- Grow Light Electricity Cost Calculator Calculator
- The Most Efficient Grow Lights by µmol/J Roundup
- How Much Electricity Do Grow Lights Use? Guide
- Do Grow Lights Raise Your Electric Bill? Guide
- The Cost to Run a Grow Light All Winter Guide
- LED vs Fluorescent Running Cost Comparison
- LED vs HPS Running Cost Comparison
- Do LED Grow Lights Get Hot? Guide
- Watts vs Equivalent Watts on Listings Guide
Fixture Reviews and Roundups
/reviews — 17 pages
- The Best Grow Lights Roundup
- The Best LED Grow Light Panels Roundup
- The Best Grow Light Bars Roundup
- The Best Grow Light Bulbs Roundup
- Mars Hydro TS 1000 vs ViparSpectra P1000 Comparison
- Barrina T5 vs SANSI Grow Bulb Comparison
- Where to Buy Grow Lights Guide
- Grow Light Troubleshooting Guide
- Mars Hydro TS 1000 Review
- Spider Farmer SF1000 Review
- AC Infinity IONBOARD S22 Review
- ViparSpectra P1000 Review
- VIVOSUN VS1000 Review
- Barrina T5 4ft Grow Light Strips Review
- SANSI 36W BR30 Grow Light Bulb Review
- Soltech Aspect Gen 2 Review
- GooingTop Clip Grow Light Review
About, method and legal
Who writes this, how every figure is produced, how the site is funded, and the legal pages.
Start somewhere useful
If you landed here looking for a starting point rather than a directory, these three answer most of what people arrive asking:
- The best grow lights — the main ranking, and what each manufacturer does and does not publish.
- The coverage calculator — how much light a given fixture puts on your actual shelf.
- The running-cost calculator — what it costs on your own electricity tariff.
The hub index for each section is linked at the top of its group above, and every hub carries its own orientation piece for the category.