Hello,

My first reaction was to say to get the dual bulb reflector, because of the added light spectrum for the plant to take advantage of.

However notanovice has made a very good point. If you need two 1000 watters then you are obviously in a decent sized area and you would probably be more concerned in overall light coverage/penetration.

If you have a light rail or two within your setup then I would suggest getting atleast one of them with the dual bulbs, for the added spectrum.

Peace