Electroluminescent (EL) High-electrol DC voltage DCEL, AC voltage ACEL, thin film EL, thick film EL, or Luminescence Phosphors Photoluminescence lamp Phosphors fluorescent lamps ... (EL) High-electrol DC voltage DCEL, AC voltage ACEL, thin film EL, thick film EL, organic EL low-electrol light emitting diode (LED ...