In general, you’ll want to hang your light no more than 12″ away from your plants. – Remember: after 12″ fluorescent lighting loses its power, so make sure you don’t raise it any more than 12″ above your canopy otherwise your plants aren’t getting light energy.
Correspondingly, how many CFL lights do I need for one plant?
The easiest to use is the square foot. When using CFL bulbs to grow a plant with a high light requirement (like cannabis), you want a minimum of 60 watts per square foot. Ideally, you want 100 watts per square foot. And it doesn’t hurt to go higher (though there’s not much point going over 150w).
Its advantage is quite high LPW efficiency, low heat generation, longevity. … As we can see, the CCFL grow light spectrum is quite poor and a lot of light also lies in green-yellow part, so it is not perfect for plants.
Also, how do you tell if grow light is too close?
The first signs look like thin outlines on the outside of the leaves, so if you catch this quickly you will have a chance to avoid further damage. If some of the leaves start curling up, it might also be a sign that the plant is too close to the light. Good ventilation usually also helps with this issue.
How close should 300w LED be from plants?
LED lights & how close they should be
Since LED lights produce far less heat compared to other types of lights, plants can tolerate LED lights being much closer. A general rule is that LED lights should be about 12-30 inches from the top of your plant.
Can you use LED and CFL together?
The fact you have a CFL lamp on the same branch circuit as a LED light should have no impact on the service life of the LED light.
How many watts CFL for seedlings?
Seedlings need approximately 32 watts per square foot of growing area for LED grow lights and 100 watts per plant for CFLs. They also require the right color temperature to grow and thrive, so choose a temperature range of 3,500 to 6,500 kelvins.
Which CFL bulbs are best for growing?
Best CFL Grow Lights
If you’re just starting out, the best CFL grow light on the market is the Agrobrite 2?, 4-Tube T5 Fixture. It comes with four 2? long T5 bulbs in the 6500K range – perfect for getting plants through the vegetative phase of the growth cycle.
