Using Grow Lights - Feit Electric GLP20/TABLE/37W/LED Important Safety Instructions And Installation Manual

Using Grow Lights

Why Use LED Grow Lights?
• Grow plants during the winter to get a head start on
Spring vegetable plants
• Grow plants that are out of season throughout the year
• Grow plants anywhere, including garages, basements, closets,
kitchens or warehouses
Recommended Light
to Plant Distance
Plant types are generally categorized into high or low light level
plant categories. The PAR/PPF value of a grow light equates to the
amount of light energy that a plant can absorb. The higher the
PAR/PPF, the more intense the light energy facilitating accelerated
vegetative and/or flowering growth. The top light should be 6"
above the top leaves. If leaves start burning, increase the top
light distance.
The arm extension maximum height is 15.8 in. and
NOTE:
the minimum height is 9.65 in.
Seeding
16hr ON
Timer
8hr OFF
Height*
6-12 in.
2-3 weeks
Growth Cycle**
* The height is the distance between bottom of the light source to the
top of the plant. Increase the height of the telescoping post if dry spots
on the plant begin to form.
** Growth cycle depends on the type of plant.
Vegetation Flowering
16hr ON 12hr ON
8hr OFF 12hr OFF
6-12 in. 6-12 in.
4-6 weeks 2-4 weeks
User Interface
Power Light Settings
Button
Seedling Stage: Blue/White Light
Vegetation Stage: White Light
Flowering Stage: Red/White Light
Plants in Vegetative
Growth Stage
• The recommended growth cycle is 16 hours of light during the
vegetative growth stage (only applies to the table top light).
16 hours is the default vegetation timing schedule. This light cycle
will create an environment that mimics the photo-period in the
summer with long days. It is during the vegetative growth stage
that cloning, transplanting, pruning and bending are all initiated.
• Most plants will need 4-6 weeks in the vegetative cycle before
reaching the start of the flowering stage.
Plants in the Flowering
Growth Stage
• Pre-flowers are the first indication that the plant is ready to move into
the budding and/or flowering stage of growth.
• The pre-flowers grow at branch internodes just behind the leaf spur
typically around the fourth week of vegetative growth, when the plant
is 6-8 weeks old.
• When you start seeing pre-flowers forming, this means that the plants
are ready to go into the flowering stage. The pre-flower looks like a
regular female flower with white fuzzy pistils. The pre-flowering can
take from 1-2 weeks.
• Wait to induce flowering until pre-flowers have appeared.
Induce flowering by switching your light cycle to 12 hours of
uninterrupted darkness and 12 hours of light.
Seedling
Vegetation
Flowering
Timer Settings
(Hours on)
8
Please contact 1-866-326-BULB (2852) for further assistance.
8
12
16
24
WWW.FEIT.COM