A question from a fellow grower:

,is it possible to use cfl and led lighting


Yes, many people do. CFL would likely be used for the vegetative growth period and/or propagation. It can also be used during more intensive growth or flowering as supplemental “side” lighting. In these ways it is used with HID as well. CFL just doesn’t have a lot of canopy penetration but it can be used successfully for an entire grow all on its own.