Hummer H3T Map Light Bulb Size
The Hummer H3T map light requires a 578 bulb size for the interior lighting system. Data for the specific component covers the range from 2009 to 2010.
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 Type | Shop |
|---|---|---|
| 2009-2010 | 578 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V, 12W. | 578 | Check Price |