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.
Backlight Lamp. The backlight lamp provides light to the LCD or LED laptop screen. LCD laptop screens generally use CCFL backlights, while LED screens use LED backlights. Your laptop's screen may flicker if the backlight lamp is failing or if the power cable from the inverter board is not securely connected. Loose Cables.