600 W grow light: distance and limits of high-power lighting

A 600 W rating alone cannot determine the distance from the foliage. High-power setups require consideration of the model, coverage and heat constraints.

Different technologies and setups

HPS, MH and LED lights have different optics and mounting conditions. Electrical consumption does not provide a distance rule that applies to every device. Follow the instructions for the exact product and its safety requirements.

High power is not the starting point for a houseplant

For a pot or an indoor plant shelf, start by assessing the location and choosing for the intended use. Compare plant lights without assuming that higher wattage is more suitable.

Record the details before adjusting

Note the model, variant, intensity, height and any measurements provided by the manufacturer. Check the environment, mounting and permitted temperatures. The distance guide explains why one fixed value would be misleading.

Editorial review: 3 October 2026 · TerraLED. Set up your equipment according to its instructions and the needs of the species.