This is an alternative way for Led Letter Sign Board where an ACP or Aluminum casing (powder coated in any colour) is provided around the acrylic letters. This makes the signage far more durable and proof against winds and dirt. It conjointly provides it with an additional premium finish and prevents light-weight from popping out from the edges of the letters. This is recommended for signage installed at a greater height to bear high wind pressure. This can also have an ACP box backing.