There are two types of cells within the heart: the cardiomyocytes and the cardiac pacemaker cells. Cardiomyocytes make up the atria (the chambers in which blood enters the heart) and the ventricles (the chambers where blood is collected and pumped out of the heart).These cells must be able to shorten and lengthen their fibers and the fibers must be flexible enough to stretch.ardiomyocytes make up the atria (the chambers in which blood enters the heart) and the ventricles (the chambers where blood is collected and pumped out of the heart). These cells must be able to shorten and lengthen their fibers and the fibers must be flexible enough to stretch.
â¢ A ballast-compatible LED tube light will not work without a working ballast. The life of a ballast is limited. Any good LED. tube light will outlive an electronic ballast. A ballast-compatible LED tube light will require regular replacements for as. long as the tube light lasts. When the ballast fails, a new ballast will need to be purchased and installed to keep the. ballast-compatible tubes working. Multiply this by hundreds of fixtures throughout a facility, and the incurred cost.
UltraStart Â® Programmed Start Ballasts GE UltraStart Â® is a new generation of T8 and Programmed Start (PS) ballasts that addresses the growing demand for energy-saving strategies incorporating occupancy sensors and other automated light controls to meet strict energy legislation. Systems combining UltraStart Â® electronic ballasts and GE T8 energy savings lamps can deliver over 40% energy savings over standard T12 electromagnetic ballast systems not including the incremental savings from the use of occupancy sensors or daylight harvesters.