Toggle
A toggle is a type of power that can be turned on and off (like a light switch), as opposed to auto powers which are always active. When a toggle is on, the user usually receives some kind of persistant benefit (such as stealth or increased defense) as long as the toggle remains on. This benefit usually comes at the cost of a slow drain to endurance, with other possible costs such as decreased movement speed.
Most self-toggles, powers that only affect the user, can be turned on while moving. Toggles used on other characters usually require the user to stand still while the power is activated.
Toggles shut off automatically if the user does not have enough endurance to sustain the effect, is stunned or killed, or is hit with a Toggle Dropping power during PvP.