... in backlight,billboard ,warning sign , lighting etc . 2.Any custom design is welcome. el poster product is high-technology and ... one panel is 1.5mx2.5m, and we can tile up several pieces together .13. Voltage : lighting area is smaller ... centers, chain stores, supermarkets, airports, railways, subways, night clubs, company banner, taxi, bus advertising, promotions. 5. EL poster structure: A complete ...