So far, I haven't found any high output, 3 watt RGB LED fixtures that are adequate for medium-high to high output plant lights sold at Petco or Petsmart. The regular single bright and double bright LED Petsmart sells are good for low to low-medium light output only and are not really at the optimum Kelvin temp for medium to advanced plants. Do your research. LED's or T5 HO's. I have both and each has its own advantages/disadvantages.
For example- 24" marineland double bright regular LEDs rate 450 lumens. The Marineland 24" high output 3W RBG LEDs rate 1720 lumens. BIG difference in the same size. I post this so that if you think you may get into planted tanks seriously, it may save you from a rather expensive repurchase down the road as I had to do. Life & Luck, OS.