Electroluminescent (EL) High-electrol DC voltage DCEL, AC voltage ACEL, thin film EL, thick film EL, or Luminescence Phosphors Photoluminescence lamp Phosphors fluorescent lamps, energy-saving lamps, black(UV) light lamp, high pressure mercury lamp, low pressure mercury lamp long afterglow phosphor radioactivity afterglow phosphor, super-long afterglow, long afterglow phosphor ultraviolet rays ...