While many veteran growers may scoff at the idea of using Compact Fluorescent Bulbs (CFL) to cultivate cannabis, Oaksterdam University reinforces the technique by having one of their official course books dedicated to the art of cultivating marijuana using CFL bulbs. The book, written by SeeMoreBuds, is titled Marijuana Buds for Less and carefully explains how to grow medical marijuana using only 6 42 watt CFL lights.
The lights, which should have reflectors attached, are used to germinate seeds in soil, on an 18/6 schedule and should be placed no more than 2 - 3 inches above the soil. As the plant grows, the bulbs should remain at all times around 3 inches from the plant. CFL lights do not give off nearly as much heat as HID lights are thus are able to be placed much closer to the plant, without burning it. This also reduces stretching of the plant, which will cause it to grow short and bushy, which is ideal for this method of growing. The 42 watt bulbs give off 2,700 lumens each, and are on 24 hours from just after the seedling stage to the flowering stage. When you wish to force flowering, simply switch the schedule to the normal 12/12 light cycle.
CFL lights are much cheaper to run than normal grow-lights, since they are designed to be energy efficient and for those who are especially concerned about the energy bill, you can grow one plant with as little as one CFL light. Enjoy this relatively new and inexpensive way to cultivate your medication.