Hi C702, Welcome to Petpitcher.
Edmund is right, you must use the T5HO, you could also use PLL 860, 36w (Philips or Osram) which is also suitable for plants. I knew some guys in Hong Kong like Avery, Rex etc. are using this with very good results. And more importantly, it's cheaper.
Dom, Lim, Isaac .... you guys should be more knowledgeable on this.