Why choose the Lite login over the standard one? Here are the primary benefits:
Enter the registered email address or mobile phone number associated with your account. Facebooklite.com Login
Facebook Lite sessions tend to be persistent. Because the app is designed to keep you connected even on weak signals, it rarely forces a logout. If a user loses a phone that does not have a lock screen password, the thief has instant access to the Facebook account. Why choose the Lite login over the standard one
If your password is correct but you still can't log in, try this: Facebooklite.com Login
It uses highly compressed data streams. This saves money on capped mobile data plans.