Capsicum,
The 150w light may not be intense enough to penetrate into the canapy. You'll lose most of your lower growth and be left with top growth only.
I would take healthy branch cuttings and start some clones in rockwool. You'd end up with compact indoor plants that will thrive when brought outdoors in the spring. When figuring the cost of electric for 18 hrs for a few months......if habs are what you want why not hook up with a produce manager and have a case two ordered during the off-season.
My outdoor growing season ends in November, I overwinter 20+ plants indoors but my lights don't get turned on until December. That's mainly to start indoor lettuce and herbs. I have in the past grown clones through the winter, which have produced fruit indoors and continued on outdoors, but nowadays the OW process is so simple and full proof that I don't even bother with the cuttings.
There's one other downside to bringing an outdoor plant inside. Unless you repot into new potting soil and a Clean pot you can wind up with a number of pest issues. Soil parasites can cause White flies to appear, fungal gnats and less common and the least wanted are the "Aphids"
Weigh out the situation, and do what's best for you......good luck
Greg