Hyundai Entourage Map Light Bulb Size

Additional Notes

• The 904 bulb follows the ANSI standard recognized in the United States and Canada, classifying it as a miniature wedge type in the T10 form factor operating at 12 volts and 8 watts.
• The T10 wedge base design means the bulb is held in place by tension from its base pins rather than a bayonet or screw mechanism, which is a common trait of low-wattage interior lighting applications.
• The Hyundai Entourage uses the 904 bulb for the front map light position across the 2007-2008 model years.
• At 8 watts, the 904 draws relatively modest power compared to higher-wattage interior bulbs, which is consistent with its role in a localized reading or map light function.
• The T10 designation refers to the bulb's tubular shape, with the number indicating a width of 10 eighths of an inch, a sizing convention used across many miniature automotive bulb families.
• Because the 904 is an ANSI-standardized bulb, it shares its electrical and physical specifications with other bulbs in the same category, though fitment compatibility depends on the specific socket and housing design of the vehicle.