Fluorescent lamps require a ballast to stabilize the current through the lamp, and to provide the initial striking voltage required to start the arc discharge. This increases the cost of fluorescent light fixtures, though often one ballast is shared between two or more lamps.
n. a deed to real property which guarantees that the seller owns clear title which can be transferred (conveyed). A grant deed generally is a warranty deed, while a quit claim deed is not. (See: warrant, grant deed)
Warranty Deed vs. Special Warranty Deed. A general warranty deed is a promise to the buyer that the seller will warrant prior problems with title, not just those that occur during the seller's ownership, but back through the chain of ownership.