OCIA.net takes a look at the Sunbeam Pro Series Lite-up EL Keyboard in their latest review.
"Thankfully, this keyboard comes equipped with an on/off switch for the EL function. I have seen other keyboards which remain lit constantly. This does nothing but decrease the lifetime of the lighting source within. I first turned on the EL function with the overhead light still on. You could tell that the EL function was on by the faint blue haze under the keys. It was not until I turned off the overhead light that you could fully appreciate this function."
"Thankfully, this keyboard comes equipped with an on/off switch for the EL function. I have seen other keyboards which remain lit constantly. This does nothing but decrease the lifetime of the lighting source within. I first turned on the EL function with the overhead light still on. You could tell that the EL function was on by the faint blue haze under the keys. It was not until I turned off the overhead light that you could fully appreciate this function."