After getting it home, it quickly became apparent that there was a fundamental design flaw: the backlight is far too bright for a bedside table, even on its "dim" setting. This seems to be a common complaint with many new DAB clock radios. But with just a screwdriver and long-nosed pliers there is a solution...
The following instructions are for the "Technika CR-109IDAB" device, but I'm guessing they're all pretty much of a pattern. Your warrantee will be invalidated, of course.
- Remove the six crosshead screws from the base.
- Remove the two crosshead screws holding the LCD module to the front panel.
- Replace (or add) opaque electrician's tape over the LEDs so only a fraction of their light will leak into the prism behind the LCD module from the side.
- Reassemble the unit, in reverse order. The brightness of the backlight should be considerably reduced, perhaps to the point where you won't be able to easily read the time in daylight; but at least you'll be able to sleep at night without eye-shades.