Isuzu i-370 Dome Light Bulb Size

The Isuzu i-370 dome light requires a 561 bulb size for proper installation and function within the interior cabin lighting system. Data for the specified lighting component covers the range from 2007 to 2008.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2007-2008	561

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	561

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Additional Notes

The 561 bulb is the sole dome light bulb size listed for the Isuzu i-370, covering the 2007-2008 model years.
The 561 is classified as a festoon-type bulb, meaning it is cylindrical in shape and makes electrical contact through metal caps at each end rather than through a base socket.
The bulb measures 44mm in length, which is the span between its two end-cap contacts and determines physical fitment within the dome light housing.
It operates at 12 volts and 12 watts, values typical of standard automotive interior lighting on 12-volt vehicle electrical systems.
The 561 carries ANSI standardization recognized in both the United States and Canada, meaning its physical and electrical specifications conform to a defined industry standard rather than a proprietary format.
Because festoon bulbs rely on end-cap contact rather than a keyed or indexed base, substitution with another festoon bulb requires matching the 44mm length precisely to maintain proper contact within the fixture.