Classic reflectors - CFL reflectors - CMH bulbs - MH bulbs (lamps) - CFL bulbs (lamps)
CMH (ceramic metal halide - also LEC or CMD) bulbs are suitable for plants in the vegetative and flowering phase. CMH lamps produce the most sun-like spectrum of light.
MH bulbs are especially suitable for the plant vegetative phase.
CFL bulbs are energy saving bulbs and are suitable for plants in the vegetative and flowering phase. They are more suitable for smaller spaces.