e-Vision operates high-intensity discharge metal halide lamps rated 35 and 50 W, or 70 and 100 W (depending on model) and accepts 120-277 Vac, 50/60 Hz. Versatility reduces inventory requirements. Ballast intuitively removes power from lamp as it reaches end of life, improving safety and eliminating flicker. Regardless of lamp wattage, it maintains ballast factor of 1. Metal enclosure transfers heat away from sensitive electronics. Versions with side- and bottom-exit leads are available. Electronic design operates 10-20% more efficiently than magnetic types.