Welcome to Happy Hydro's Grow Light Distance Calculator! Designed with gardeners of all types in mind, this tool helps you determine the optimal distance for your grow lights. 

Whether you're using Bar Style lights like the AC Infinity EVO series and the Growers Choice ROI series, or Board Style lights like those from HLG, just select your growth stage, light type, dimmer setting, and strain variability, and let our calculator provide the perfect distance.

Disclaimer: This calculator is intended for estimation purposes and should not be relied upon for commercial use.

Grow Light Distance Calculator

Version 1.0 - Created 9/09/23

How to Use the Grow Light Distance Calculator

Whether you're a novice gardener or a seasoned grower, this calculator is designed to give you the most accurate distance recommendations for your grow lights. Here's how to use it:

  1. Select the Stage of Growth: Choose the current stage of your plants from the following options:
    • Seedling
    • Vegetative
    • Transitioning
    • Flowering

  2. Set the Dimmer Percentage: Many modern grow lights come with dimmer settings. Choose the dimmer setting you're using or planning to use, ranging from 20% to 100%.

  3. Choose Your Light Type:
    • Bar Style Lights: Such as the AC Infinity EVO series or the Growers Choice ROI series.
    • Board Style Lights: Like those from HLG.

  4. Strain Variability: Some plants are more sensitive to light than others. Select between:
    • Sensitive
    • Hardy

  5. Click "Calculate": After entering all the necessary information, click the "Calculate" button.

  6. Review Your Results: The calculator will display the recommended distance your grow light should be from your plants. It might also display a warning message if extreme conditions are detected.

  7. Adjust as Needed: Use the information to adjust your grow light setup accordingly. Keep in mind, this is an estimation and it's always good to keep an eye on your plants for any signs of stress or light burn.

Tips for Using the Calculator

Know Your Growth Stage

Different stages of plant growth require different light distances. Make sure you select the correct stage—Seedling, Vegetative, Transitioning, or Flowering—for accurate results.

Understand Your Light Type

Bar Style lights like the AC Infinity EVO series or the Growers Choice ROI series often require different distances compared to Board Style lights like those from HLG. The calculator accounts for these nuances.

Use the Dimmer Setting

Most modern LED grow lights come with dimmers, ranging from 20% to 100%. Use this feature in our calculator to fine-tune your light distance based on the dimmer setting.

Factor in Strain Variability

Some plants are more light-sensitive than others. If you're growing a light-sensitive strain, be sure to select the 'Sensitive' option for a tailored recommendation.

Frequently Asked Questions

  1. Can I use this calculator for non-LED lights?
    • While designed for LED lights, the calculator can provide a rough estimate for other types of lights.
  2. How often should I check the light distance?
    • It's advisable to check whenever you adjust your lights or move to a new growth stage.
  3. Is there a mobile version of the calculator?
    • Yes, our calculator is mobile-friendly!

Support & Resources:

Need further assistance or have questions about using the calculator? Feel free to contact our support team. From beginner guides to advanced cultivation techniques, Happy Hydro is your go-to destination for all things gardening.

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