Saturn Relay Dome Light Bulb Size

The Saturn Relay dome light requires a 562 bulb size for proper installation within the interior overhead lighting fixture. Data for the bulb specifications covers the range from 2005 to 2007.

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
2005-2007	562

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 44mm length, end-cap contacts. 12V, 12W.	562

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Additional Notes

The Saturn Relay (2005-2007) uses the 562 bulb size for the dome light across all three model years.
The 562 is an ANSI-standardized bulb recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical standards shared across those markets.
The 562 is a festoon-type bulb, which is a cylindrical lamp that mounts by pressing its end caps into spring-loaded clips rather than using a screw base or bayonet fitting.
The 562 bulb has a 44mm length, which is the span between its two end-cap contacts and is the critical factor in determining whether a festoon bulb seats correctly in a given fixture.
The 562 operates at 12 volts and 12 watts, values consistent with standard automotive electrical systems.
Because the 562 uses end-cap contacts, substituting a festoon bulb of a different length would result in a poor fit even if the voltage and wattage ratings matched.