P4X-347
From The Stargate Omnipedia
Planet with dim skies and sandy beaches. The world was originally under Goa'uld control. A facility lay near several gargantuan statues bordering a sea. Within the facility was a Goa'uld "opium den" where the rulers would arrive to gain pleasure in the beauty of a light emitter.
DETAILS
HOME TO - Uninhabited
FIRST APPEARED - The Light
KEY EPISODE
The Light - P4X-347 is discovered by SG-5 and Dr. Jackson, who eventually discover the light emitter and are caught in it's powerful effects.