sign backlight leds al heat dissipation,light uniform CE&RoHs,lifespan50.000h 3year warranty, custom size 30x30,30x60,60x60 available slim leds board for signs backlight(External and internal ) Your best choose for your signs/lightbox backlight application!>Slim,3.5mm only.> High light efficiency:90Lm/w> DC12V constant voltage operated> Lifespan50.000hrs with 3years warranty>Unliminted sizes and ...