The concealed display has a photocell that automatically adjusts the brightness of the led's depending on ambient light. i.e. the led's will illuminate brighter during the day so you can see them, and dim at night so it doesn't blind you. Does anyone know if there is a simple way to increase the maximum brightness level? Perhaps there is a resistor or series of resistors that would allow slightly more power to to the led's without damaging them. tia.