the lighting you require is a T5 or T8 Fluorescent tube. i use the T8 for my planted tank to provide all the necessary lighting for the plants. you can get it any aquarium shops that specialize in planted tanks.
hi chandrathanks for your comments. yes, i found out from folks to use those aquarium lightings but until today, i haven't worked on this.too many projects, not enough time.thx again!bg