Can I add Low Pressure Sodium Light to my garden?

Question:I am growing 2 plants, already with 200 watts of flourescent grow light. I know that in order to get good buds they need an orange/red spectrum, I can't really afford an HPS, would adding LPS help?

Answers:
At this phase of growing plants needs more nitrogen so you must go for first nitrogen base fertilizer for vegetative growth like 26-8-10(NPK), If your growing medium has "PH" is high than 7 (normal) than and than go for LPS subjected to PH level of growing medium to balance PH level.