led letter light 1.various designs and colour 2.accept ODM 3.waterproof led sign 4.for both indoor or outdoor led letter light1.material brudhed stainless steel2.waterproof,so this led sign can be used at outdoor3.the led modules inside keep colour for long time4.As you tell us what you need or you want put the sign to where,we can design for you and give you some suggestion.5.welcome produce ...