The Best All-Around Lighting for Seedlings to Houseplants!

24 inch 20 Watt Gro-Lux Wide Spectrum Fluorescent Tubes - Pack of 2

Pack of 2
Item # 06870-PK-2
Available to ship.

20-watt tubes 24 inches long!

Wide color distribution (more reds and yellows) in these fluorescent tubes maximizes the growing environment for most types of plants.
Item Form Pack of 2
Size 24 inch 20 Watt
Restrictions Canada

How long should grow lights be kept on per day and how close to the plants should the light be kept?

For germination and seedling/plant growth, you want to simulate the natural day-night cycles, and as a general rule, grow lights should be on 8-12 hours per day and off at night. You can vary this timing, as some seeds such as tomato, pepper, petunia, impatiens, and others, benefit from 14-17 hours of light per day (and the remainder of the 24 hour period in darkness). The most common grow lights used are fluorescent; using cool white, warm white, and wide-spectrum fluorescent tubes. These lights work well for germination and for growing plants up to a transplantable size. Fluorescent lights should be kept close though, 3-6 inches above the soil or the growing plants, adjusting the height as the plants grow.