An electronic converter receiving low frequency input power, converting this power to DC power at a voltage greater than the input voltage peak, and providing output power from a commutator stage. The light-recycling illumination system includes a light source that is enclosed within a light-recycling envelope. The contact spring applicator may also include an applicator substrate, a release layer, a plurality of unreleased contact springs on the release layer and a bond pad at an anchor end of each contact spring. A second set of documents from the corpus that do not overlap with the first set may include at least one link to a document in the authoritative set, the at least one link being associated with anchor text.