Alfa Romeo Stelvio Sun Visor Bulb Size

Additional Notes

• The T5 miniature wedge bulb is the format used for the sun visor position in the Alfa Romeo Stelvio across the 2021-2023 model years, with all three years sharing the same size 70 specification.
• The size 70 designation follows the ANSI standard as recognized in the United States and Canada, placing it within a standardized North American bulb classification system.
• The T5 designation refers to the bulb's tubular envelope, where the number 5 represents five-eighths of an inch in width, making it one of the smaller wedge-type bulbs used in automotive interior applications.
• The wedge base design means the bulb is held in its socket by the tension of the base itself rather than by a separate locking mechanism, which is a common construction for low-wattage interior lighting positions.
• At 12V and 1.4W, the size 70 bulb operates on the standard automotive electrical system voltage while drawing a very low current, consistent with the minimal illumination demands of a sun visor vanity light.
• Any replacement bulb for this position must conform to the T5 wedge base format at 12V and 1.4W; substituting a bulb with a different base type or wattage rating would result in either a fitment failure or an incompatible electrical load.