1. frontlit led letter signs with promotion face led beads 2.LED up to 50,000 hours life span 3 ... .CE ,RoHS and UL certificated LED module use CHIMEI chips,2.Super high brightness,Light uniformity,over 50,000 ... for : shop signs,bank signs ,hotel signs,hospital signs, school signs ,advertisement, architecture, decoration, exhibition, and lighting, etc*Quality: 5 star quality, 100% satisfaction ...