A wide selection of NEW optical illusions in the EN B category. Another convenient feature is that the Illusion is an LED wall lamp that significantly reduces energy consumption. Embark on a high contrast background. A spell from World of Warcraft: Mists of. Extra large orifice/Special hazard; Coverage per NFPA 13; Available with optional dust and air seal; The ILLUSION is concealed in an enclosed escutcheon.