Large XP lamp (Battle of Lumbridge) was removed from RuneScape after an update, but still exists in-game for those who had obtained it.
A large XP lamp is a purchased reward from the Battle of Lumbridge, which grants the player 95% of the experience a large prismatic lamp would give. The experience gained is the same from level 98 to 120. After the week 9 vote, the store price was reduced to 1235 renown.
In a hidden update on 13 August2013, all 3 tiers of lamps were merged into the same item. Originally the Tier 2 large lamp cost 1,450 renown and required a gold token, while the Tier 3 large lamp cost 1,600 renown and required a runite token.
The experience of the Tier 1 lamp used to be 95% of a normal Squeal of Fortune lamp, and a Tier 2 lamp granted the same amount of experience as a SoF lamp.