WHy is there a light in refrigerator but not in the freezer ?

-Why does it have a light in the fridge ? Because that in the night, if you want to take some thing from the fridge, you wont need to turn on the light of the kitchen - it may be disturb people in house, or may be it will be harder to find the button of the light than the fridge . But I think that hardly to find someone get up in the middle of the night to get ice cream or cold-food . But in fact, nowaday, producers is tend to satisfy every kind of customer, so it will not be amazed if you have a freezer with a light ...

-It is some information that i got :

1. Because the temperature in a freezer is much lower than of a refrigerator, a much more expensive shatterproof bulb would have to be used. In fact, if you put a common household bulb in the fridge, it will be fine. But put it in the freezer, and it should crack after a few hours (or days, depending on the temperature you freezer operates at).
2. Because there is less demand for illuminated freezers and yet midnight snacking almost exclusively demands a refrigerator lamp, lamps are often only fitted on the higher end models.
3. Standing freezers often use closed-off pull out drawers. In order to effectively illuminate the entire fridge, a lamp would be required behind each shelf. Each of these would need to be shatterproof. (www.fluther.com)

P.S : i'm wondering that which question i will do tomorow ... I'm so full of everybody idea .... Gud night ... +.+