Metal halide lamps are similar to mercury vapor models except for the addition of metal halides of sodium iodide and scandium iodide. Certain metal halide lamps feature other iodides to improve the efficiency and color balance of the lamp. Metal halide represents the most popular and widely used HID category.
General lighting such as commercial/industrial/outdoor flood lighting where good color and high efficiency are desired.
HID Metal Halide (PS)