A small hand-held energy weapon used by Starfleet personnel, from circa 2266, and whom preferred not to appear conspicuously armed, as in diplomatic functions. The power settings available to the Type-I phasers are designated 1 to 8.

[Phasers main page] - [Available power settings and effects]
[Phaser Type I] - [Phaser Type II] - [Phaser Type III]

A Type-I phaser from The Original Series.	A Type-I phaser from Star Trek III: The Search for Spock.	A Type-I phaser from The Next Generation. This is the Type-I phaser currently in use.