I don’t have any personal experience with them but they look similar to the Barrina lights that a lot of people use in the r/microgreens sub. These lights are better spec wise, but again I don’t have experience with either of those lights.

The lights in 2700-3000k appear more yellow and are slightly heavier in the red spectrum which will promote more vertical growth but longer internode spacing. The lights in the 5000-6500k will appear more white/blue and be slightly heavier in the blue spectrum which will make them grow slower vertically but shorter internode spacing and denser foliage.