... ,competitive price,OEM service 3.Customized Acrylic led channel letter specification: 1 MaterialHigh level 304# stainless steel,aluminum, and acrylic sheets2Technique Processwelded,polished,brushed ... ,painted,electro-plated3Light SourceLED modules inside4LED FeaturesWaterproof, high lighting, energy saving, and 50.000 hours ...