... we can make is within 90cm*90cm(singal square).Driven Source Of EL--INVERTER:The cause of the lighting source is driven ... note book, electronic dictionary, control panel of music equipment, micro-wave stove, control panel of fax machine, printer, watch......2. Car ... . The Advantage Of EL Poster1. Extra save electric power, short-wave lighting, no radiation, bright and remarkable in the night, which ...