A medium XP lamp is a purchased reward from the Battle of Lumbridge, which grants the player 94% of the experience a medium 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 665 renown. Note: If you use a medium XP lamp on Dungeoneering, you will not be awarded with the dungeoneering tokens.