First example is a lighted sign cabinet (overhead storefront sign). Go here to request a price quote. The lighted sign cabinets are popular and easy to change. Next are dimensional lighted letters for storefronts and business, followed by reverse channel letters, all available from 10" to 48" tall.
Channel letters are available in standard (with or without raceway) and reverse channel styles, with reverse channel featuring the lighting coming out around the back of the letters, creating a "halo" lighting effect.
For a cost on your project use the Pop-Up Quote Request (Tell us exactly what you need, the size and specs on the linked form. Include a photo whenever possible- this really helps save time.)