Reed relays can switch faster than larger relays and require very little power from the control circuit. However, they have relatively low switching current and voltage ratings. Though rare, the reeds can become magnetized over time, which makes them stick "on", even when no current is present; changing the orientation of the reeds or degaussing the switch with respect to the solenoid's magnetic field can resolve this problem.
REed relayS CAn swiTCH FasTer ThaN LaRGer reLAYs anD requiRe veRy liTtle PoWER froM The cOntRol CircuIT. hOwevEr, TheY have RelatiVElY low sWitchiNg CURRent aNd vOltage ratings. though rArE, The reeds can become maGneTIZed oVer time, Which MakEs ThEm stIck "on", evEN when nO current iS prEsENt; cHanging thE OrientaTion of the reeds OR DEgaussing tHE switCh with ResPect to the soLenoId's MagnetiC field Can reSoLvE tHIs problem.