if ur using fluros bring the lights down about 3-4 cm from the tops of the plants
that will stop the stretching.
get a nother fitting for the fluros same as the one u have
then u get 2 warm white tubes
and 2 cool white tubes then put them warm, cool warm, cool
that should be enough for ur veg growth on a 24/7 sicle
a fan is important for the stems
and a higher wattage for flowering will also bee needed at least 250-300w min.

hope this tels u somethin

Happy growing