Maybe I've also received a defective device, but with the lighting, which can be seen here in the product image, this lighting has nothing to do with my radio alarm clock. Even late at night in the pitch-dark room I have read much effort the time displayed on the screen. Here, the clock is not arm's length away. The hours are still reasonably legible ... anything goes almost in darkness. Therefore, there is only one star from me, because I find the product image with the luminance represented there more than misleading.