Even if the spots are quite quite bright, the range of the light is still quite limited. Estimated 50cm it is sufficient. This should be observed as a light accent during use. The spots are incidentally not in itself pivot or rotate.
A statement on the solvability and again the spots Anklebbarkeit I can not meet because the spots have remained where I have sat down at the beginning, unfortunately.
So far I'm very pleased with the spots. The triangular shape of the spots like. After all, one has the opportunity to position the small red lettering so that it is not visible.