Lightblocks Standard Lit Boxes are offered in six sizes with and without a lighting option with custom sizes available. The boxes come with solvent bonded cleats for easy installation and placement determined by project. Options can include ceilings and inset in walls. Lighting panels come installed into the box when possible with final wiring done by onsite electricians. Boxes are lit with LED sheet light panels. The back side and bottom do not glow. It comes in 390 standard colors in a standard 0.5-ft. thickness.