How Far Should Grow Lights Be From Plants?

Grow light distance guide showing recommended LED and HID light distances for seedlings vegetative growth and flowering plants
Recommended grow light distances for seedlings, vegetative growth, and flowering stages when using LED or HID grow lights.

One of the most common mistakes beginner growers make is placing grow lights too close or too far away from their plants.

Correct light distance ensures plants receive enough light without causing heat stress or light burn.

Recommended Grow Light Distance

Seedlings
24–36 inches

Vegetative stage
18–24 inches

Flowering stage
12–18 inches

Always monitor plants for signs of stress such as leaf curling or bleaching.

Tips for Adjusting Grow Lights

• Raise lights as plants grow
• Monitor plant response daily
• Use adjustable light hangers

The right lighting setup can dramatically improve plant growth and yield.

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