Follow the grow light maker’s guidance for mounting height and coverage. The right distance depends on the light’s output and type, so there is no single number that fits every light.
Too Far or Too Close
Plants too far from the light grow tall and weak, often called leggy. Plants too close can be damaged by heat, and leaf edges may burn or curl.
Practical Tips
- Start with the manufacturer’s recommended height for your crop.
- Raise the light as plants grow, and watch the top leaves for heat stress.
- Check the light’s coverage area, so the whole crop gets even light.
Related guide: Lighting.
