Abstract: A device may include a power source, two or more lamps for providing light, and a controller. The controller may be configured to periodically select a first combination of one or more of the lamps, provide power from the power source to the first combination of the lamps, select a second combination of one or more of the lamps, and switch the power from the first combination of the lamps to the second combination of the one or more of the lamps after a period of time has elapsed.

Abstract: A plate for protecting a cable along a stud is provided that prevents damage to the cable when screws or nails are inserted through drywall and into the stud. The plate comprises a channel for receiving the cable and a flange which is attached to the channel for mounting the plate. A retaining tab is used to retain the cable within the channel. The channel is shaped such that a series of plates can be joined together in partial overlapping arrangement.

Abstract: A device may include a power source, two or more lamps for providing light, and a controller. The controller may be configured to periodically select a first combination of one or more of the lamps, provide power from the power source to the first combination of the lamps, select a second combination of one or more of the lamps, and switch the power from the first combination of the lamps to the second combination of the one or more of the lamps after a period of time has elapsed.

Abstract: Metal construction members or studs have a generally U-shaped profile, and can be provided with openings for cables, plumbing conduits and the like. Walls are constructed by attaching wallboard to vertically asserted studs. To protect cables etc. against accidental penetration by nails and screws, a protector plate unit has first and second protector plates for mounting adjacent outer faces of the metal stud. A mounting web extends between the protector plates. Securing means, for example a collar and tabs on the mounting web, engages the opening in the steel stud, to secure the protector plate unit in position, and to provide an internally smooth bushing.

Abstract: A self-locking divider plate made of flat sheet metal is provided in an electrical box to form separate compartments. The electrical box has several upper and lower front ledges which form aligned slots which in turn, cooperate to receive the divider plate. The side edges of the divider plate has a biased sheared tab which locks the plate in place between the slots upon installation of the plate into the box. These sheared tabs extend outwardly from one of the planar surfaces of the plate. When the plate is inserted into two aligned front slots, the tabs are pushed inwardly toward the planar surface of the plate, and spring back to their normal position when the plate is in its proper position in the box. The tabs engage an inside surface of the ledges when the plate is moved outwardly from the box to prevent its accidental removal.