... can be used. 3.LED back light source. LED Super Large Light Box 1, size: no limits for ... 3, thickness: the thickness of this type is only 9mm, just a quarter of traditional light box. 4, high brightness ... : higher brightness 60% than T8 tube light box, but the ... world top class 5828 TV backlight LED (light life is above 50000 hours),can be used ...