Lucky eggs in Pokemon GO Wiki
Lucky Egg
Lucky Egg is an item that doubles gained XP for 30 minutes. After activating a Lucky Egg, its effect lasts whether the player is online or offline.
This item cannot be obtained from a PokéStop itself. However, it can be received by reaching certain levels, or by purchasing it from the Shop for 80 . A bundle containing eight Lucky Eggs can be purchased for 500 as well. It can be also rewarded for completing set of Special Research tasks.
In-game description
A Lucky Egg that's filled with happiness! Earns double XP for 30 minutes.
Trivia
Trainer receives Lucky Egg as the reward for achieving specific levels:
at levels 9, 10, 15, 25 and 35 they receive one Lucky Egg,
at level 20 two of them,
at level 30 three
and at level 40 four Lucky Eggs.
During the events at which Experience Points are being doubled Lucky Eggs still works doubling already doubled XP which r...