How big a light you need will depend on the number of plants you plan on growing, but also on the size of your space. If you’re growing in a closet or a small grow tent, you’ll only be able to fit one small light in there. If you have a wide open basement, you could invest in a bigger light as opposed to two smaller ones.
Lights have fixtures and bulbs, and some require a ballast. Depending on the type and model, the bulbs or the fixtures can be more expensive. There are a lot of abbreviations, but don’t be alarmed.
As with HIDs, you can find CFLs at any local grow shop.
Types of marijuana grow lights
You can find HID reflector hoods, as well as MH and HPS bulbs at any local grow shop.
Once you have everything set up as described, simply add your marijuana seeds or clones and set up your lights so that they’re about 4 inches away to start.
When not using nutrients, make sure you still pH your plain water before your feed your marijuana!
You will want to start feeding your plants with nutrients at quarter strength for the first week, then work your way up to full strength slowly.
Cons of Growing Marijuana with CFL Grow Lights and Coco Coir
I also train my cannabis plants to take advantage of the great light that CFLs produce within 2-8″ of the bulb.
Estimated Total Cost for Growing One Plant
After your plants have grown accustomed to their new environment (after a couple of days for transplanted clones, or when your seeds grow their second set of leaves) then you will want to move your CFLs so that they are about an inch away from the plant.