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

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

20-watt tubes 24 inches long!

24 inch 20 Watt
Item # 06870-PK-2
Available to ship.
Your seedlings and indoor plants will flourish under these superb wide spectrum fluorescent light tubes! They distribute more reds and yellows than standard fluorescents, creating an optimal growth environment for young seedlings as well as mature plants!

Each packet contains two 24-inch tubes of 20-watt lighting. These lights fit into our Table Top Plant Light and Park's Complete Light and Starter Kit. For 48-inch tubes, see 40-watt Wide Spectrum Fluorescent Tubes.

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.