Always-lit, adjustable backlight on clock

My clock has a VERY bright back light that comes on when you touch it. It only functions for about 2 months before the batteries run out due to how bright the light is. To put that into perspective, I've had watch batteries last 4 years before they died. In the middle of the night it's the only bright light in the room for a few seconds when I touch it.

It would be nice to have it just stay on- but have a brightness dial to change the brightness of the clock or turn off the light altogether. Then you could change the brightness to your heart's content. I realize the batteries won't last long if it's lit all the time, but then neither would a clock that has a super-bright light that comes on for 10 seconds when the button is pushed or it's touched.