Light emitter remote
From The Stargate Omnipedia
Hand-held device of Goa'uld design, providing limited control over the light emitter on P4X-347. The remote appears to have a simple push-button interface allowing a user to toggle the emitter off and on.
KEY EPISODE
The Light - SG-1 finds the light emitter on P4X-347, along with a remote control device to turn it off.