This lamp has an interior space considerably larger than its outside dimensions, with an entry point of a 3 inch diameter hole at the cap of the lamp. The lamp can hold up to 500 pounds, not exceeding a volume of 64 cubic feet. The lamp weighs 2 pounds, regardless of its contents. Retrieving an item from the lamp requires an action.
If the lamp is overloaded, pierced, or bent, it ruptures and is destroyed, and its contents are scattered in the Astral Plane. Breathing creatures inside the lamp can survive up to a number of minutes equal to 10 divided by the number of creatures (minimum 1 minute), after which time they begin to suffocate. Genies are the exception to this rule.
Placing this lamp inside an extradimensional space created by a Handy Haversack, Portable Hole, or similar item instantly destroys both items and opens a gate to the Astral Plane. The gate originates where the one item was placed inside the other. Any creature within 10 feet of the gate is sucked through it to a random Location on the Astral Plane. The gate then closes. The gate is one-way only and can't be reopened.