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.
Well, let me clear up some common misconceptions. LED IS LCD. The difference between LED LCD and the older LCD's is that LED's are used for backlighting in LED monitors, while CCFL's are used in the older LCD's, they are both LCD's though.