A system exclusive to Japan, the Game Boy Light was released a mere six months before the Game Boy Color. It is essentially a slightly redesigned Game Boy Pocket with an added electroluminescent backlight. The screen from the Game Boy Pocket can be used in a Game Boy Light, albeit without the backlight. It also uses AA batteries instead of the Game Boy Pocket’s AAA batteries to help increase battery life and give it the extra power needed for the backlight.
To-Do: Actually populate this page. Until I (makho) or someone else gets around to it, 95% of the Pocket page will be applicable here too.