V4D1G66B-00000-000 is an illuminated rocker switch from the V-Series designed for industrial panel mounting with maximum sealing protection. The switch features dual seals around lamps and rocker stem certified to IP66 and IP68 ratings, with optional panel seals for additional environmental protection. It incorporates a silver-plated butt contact mechanism rated for 50 to 100 thousand electrical cycles with multiple electrical ratings, and a roller pin mechanism that requires no lubricants and withstands extreme temperatures. The switch base accommodates up to 10 terminals and supports a large variety of switch and lighting circuits, with multi-step mounting wings providing secure fit for panel thicknesses from 0.032" to 0.250" in a standard 0.830" x 1.450" mounting hole. This design is ideal for harsh industrial environments, marine applications, and equipment requiring high reliability and environmental sealing.