If someone were to buy a FishNeedIt T5HO light and use it for a few months on their planted tank, then report that T5HO lighting is not good for planted tanks, would we take them seriously? I hope not. And, the same is true of LED lighting. LED lighting isn't available as an assembly that has clearly defined parameters, well designed for a planted tank, unless you just get lucky and find one that is. If you DIY a LED light you will likely have a steep learning curve as you figure out how to get the kind of light you want. That doesn't mean LED lighting is not good for planted tanks.