In Pennsylvania, only employers of seasonal farmworkers are required to provide breaks. These employers must give employees a 30-minute break after five hours of work, during which employees must be relieved of all duties. This time may be unpaid. All other Pennsylvania employers have no obligation to provide either meal or rest breaks.
Overview. 1  A cold cathode fluorescent lamp (CCFL) is a lighting system that uses two phenomena: electron discharge and fluorescence. CCFLs are mainly used as light sources for backlights, because they are smaller and have longer lifetimes than ordinary fluorescent lamps.
In a CCFL backlight, multiple bulbs are arranged in an array as shown in the figure below. A. reflector is oriented behind the bulbs to direct the light out the front of the LCD. A diffuser is. installed in front of the bulbs to spread out the light evenly across the LCD panel. Figure 2 - Typical CCFL Backlight.