They still need more green!!!!!! Just kidding, 5%. Green is overlooked - not needed for chlorophyll but needed for other photosynthesis. I like they didn't miss the UV, another trace spectrum that is needed.
Yeah, those test out very well, only 2-3 others even close. Not heap cheap but you got quality.
On the stretching(where I started
) - seemed very plant selective. Peppers were ok, eggplants grew short/normal as can be, basil & rosemary stayed short and grew very nice. Tomatoes stretched like hell. I mean, I bought 100% vining types this year but that was f'n ridiculous. I did notice while moving/turning trays that one brand of bulbs definitely was better. Same plants, same dirt, like a line down the middle of the tray based on the bulb brand above. One of the pale burples.