Incandescents won't grow pot.
you need a florescent for veg (with cool white lamps)...and then..an hps for flower. (high pressure sodium). They create the orange glow you see in the night time sky from all those damn parking lots nobody is using at 4 AM....
DON't let your plant stay under that light and STRETCH to hell and back.... get the proper light
READ. READ. READ. There are other pot forums besides this one if you can't find the info here.
good luck
bt dt