... EL, and how does it work?EL, or electroluminescent signage, is essentially a flat light bulb ... conductive layers and, as a voltage is applied between the two conductive layers, or electrodes, the phosphor ... High quality light panel. Uniform light source. 6.Certification as ISO-9001, CE, FCC. 3.1. EL features ... also welcome customer's OEM designs at any sizes and shapes.For more details ,kindly cotact our ...