Why does your Volvo 240 dimmer switch have 2 plug modules vs the single plug modules you have seen on eBay?

The Volvo 240's dimmer switch features two plug modules to accommodate additional functionalities, such as controlling multiple lighting circuits or providing more precise dimming options. This design enhances the vehicle's electrical system, ensuring reliable performance and allowing for more customization in lighting settings. In contrast, single plug modules typically serve more basic lighting functions and may not support the same level of complexity as the dual-plug versions.