CFL stands for Compact fluorescent light. When people are first learning how to grow weed indoors cfl growing is often a first option for them. This is due to the convenience and the inexpensive nature of cfl growing. HID lighting is much better for growing weed indoors but it has its cons like high electric bills, high initial cost, more ventilation required and much more heat generated which becomes a safety issue.
CFL’s are easily purchased at just about any hardware store. You can find many varieties and wattages at your local Lowe’s, Walmart or Home Depot.
On each Cfl package you will usually find two different numbers, for example it might say 23=100. This is basically telling you that this 23 watt cfl is equal to a normal 100 watt incandescent light. All you need to pay attention to is the actual wattage of the bulb and not the incandescent equal.
Color temperature is very important to pay attention to. This is how you manipulate the photoperiod of your plants. A bulb that emits a warmer color will be a yellowish tinge and cooler colors will emit a blue color. Plants outdoors receive more light in the warm range, being in the 6400k – 6500k on the light spectrum. Match your bulbs to this light spectrum during the vegetative phase of your plants growth. As Summer gives way to Autumn the natural light spectrum changes to a 2700k – 3000k range bulb. These bulbs will be the more blue colored bulbs.
For those who want to grow weed indoors using cfl’s the next thing you will need to know is how to position your lamps. CFL lamps should be placed a few inches above the plant foliage so that the plant receives the proper amount of light but still has room to stretch and grow. It is a daily fight to have the bulbs in the proper position since these plants grow so rapidly.
So that is the basics of using CFL bulbs to grow weed indoors. It is a great way to grow on a budget and also great for beginners who want to get their feet wet but don’t want to invest in a big grow set up. We hope this helps you learn how to grow weed indoors better.