The present invention provides a series of novel bifunctional molecules based on viologen linked acridine, bisacridine and bisacridinium salts of the general formula 1 and or pharmaceutically acceptable derivatives thereof, which can be used as phototherapeutic and catalytic photoactivated DNA cleaving agents. A coil-like or zigzag-like linear fastener element row is attached to a fastener tape with a multi-filament attachment yarn or a sewing yarn of double lock sewing system. A resilient unit can operatively bias the coin dispensing unit to an initial position for contacting coins attempting to exit a coin exit while permitting movement along a guide length with a major biasing force exerted toward the exiting coin to reduce wear on the guide unit. The Electric Power Converter achieves dynamic, real-time, interactive Power Factor Correction and advanced voltage harmonic distortion correction with a high efficiency ratio.