Heat Generated by Grow Lamps

December 4, 2018

Some lamps generate more light or more heat than others. Fluorescent lamps, CFLs, and LEDs are typically the easiest options for starting young seedlings, as they generate lower levels of heat than HID lamps and you can place them closer to your tiny plants.

These lettuce seedlings are growing well just a few inches below the grow lamps.
PC: Leslie F. Halleck

If you site an HPS lamp a few inches away from young seedlings, the intense light and heat will quickly fry them. Once your seedlings grow up, you can employ more intense types of lighting.

Gardening Under Lights Book

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