1) Universal purpose 2) Low profile and low weight 3) Low no-load losses 4) Low mechanical hum 5) Low magnetic leakage

Toroidal transformer spec :

1) Universal purpose2) Reliable safety approvals3) Twin primaries / twin secondaries4) Low profile and low weight5) Low no-load losses6) Low stray magnetic field7) Low operating temperature8) High efficiency9) Cost saving prices10) Easy to mount