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.
Another initiative is the. adoption of new lighting technologies, such as LED, CFL. and IF, which exclusively use electronic drivers and ballasts. for operation. Going forward, the most common drivers or. ballasts will be electronic. Controls manufacturers must. ensure that their controls are compatible with these new.