An energy weapon used in Star Trek. Stands for PHASed Energy Rectification. Range of types 1,2,2a side arms 3, 3a ,3b rifles, 4-10 and pulse cannons are ship based and 11 is ground/station based. Type one have 8 levels 8 while 2-3 have 16. The 3b and shipboard pulse phasers use compressed packets of phaser energy instead of beams and are able to carry suspended substances in their graviton shells and are simmilar to disruptors.