Among the other reviews where written that it is lit quite brightly: I do not think that way.
Really bad I find the installation instructions, since the 2 side fixings are not described, someone who is not familiar with it, gets into trouble - deducting 1 star.
The 2nd star is deducted because of the main attachment. Transformer is very poorly adhered and you really have not much space around the cable to stow in the ceiling, even if they are very short.