Hi John, thanks for initiating contact. The primary differences between these types typically involve design features, lens configurations, and bulb types. Type 1 usually has a more traditional design with a simpler lens configuration, often featuring a single color or basic pattern. Adequate for basic visibility but may not provide the same level of illumination as newer designs. Type 2 typically includes halogen bulbs but may also feature additional lighting elements or configurations for improved brightness and visibility. Designed for enhanced performance, offering better illumination and potentially quicker response times due to improved bulb technology. If you are looking for improved visibility and a modern look, Type 2 is often the better choice. If your vehicle is compatible with the information provided on our website, click the link below to order directly and take advantage of our current discounts and limited supply. Happy shopping! https://www.carparts.com/tail-light/replacement/repk730161?can=CPGG4850_CSQA_20240930