A compact lamp with enhanced performance Philips Linear Compact Fluorescent Lamps offer designers, specifiers and end-users new levels of efficiencies and versatility in sizes,configurations and application possibilities. With so many elegant fixtures available to complement their small size, high light output and advanced technology, Philips Energy Advantage lamps are fast becoming the preferred choice when maximum effciency and sleek design solutions are required. Compact quad tube design;Sustainable lighting solution - only 1.4mg of mercury per lamp;Designed for use with electronic ballasts for lower operating costs and flicker-free starting