HTC Hero :: Lights On While Charging?

I wanted to use my HTC for an alarm clock because then i could save the electricity that my old alarm clock uses. Sometimes i wake up and have a look at my alarm clock but now i have to reach over and get the phone and press a button to get it to light up...very bright in the middle of the night. SO....What i was thinking. If i buy a charger stand for my hero is it somehow possible to tell the phone to run the screen lights on lowest light setting when it is charging... This way i would be able to se the clock without being blinded. IF this is not an option would someone please pass this on to goggle/htc as a request or tell me how i do it.