a blue 75 watt GroLite..
 

oh and ron, i have a blue 75 watt GroLite... how good are they? dont bother or worth a go?? i'm just thinking of the cheapest option.. cos some say they do work, but whether they know jackshit about hydro or not i dont know... peace and fight the injustice, tomm.

Maybe one 75 bulb 6 inches from each plant in your garden you might grow something. Multiply that by how many plants you have and you can see why grow bulb and tubes are not worth much for growing indoors. You can use them for the first couple of weeks of life then your plants will need more light intensity to mature properly.