top quali and good brightness

No loose contacts. SMD components are soldered properly. And that's really decent for NEN 10er with close fitting. The color brilliance of einzelen primary colors is neat. Just once there was the blue often which went into the greenish, which then mix the colors a fairly narrow color space found. A good controller and dimmer for RGB course important, when colors are to be set precisely. So minimum 3x8 bit (such as hours DMX).