This side marker turn signal light set is designed specifically for BMW 1, 3, and 5 Series models including E60, E61, E90, E91, E81, E82, E83, E84, E87, E88, E92, E93, and E46. Each light features 18 high-brightness LED chips that produce a dynamic sequential lighting effect, delivering illumination three times brighter than standard factory bulbs while consuming less power. The amber lights emit a 4300K color temperature for optimal visibility and safety. Constructed from durable ABS plastic with a smoked lens cover, these side marker lights offer IP65 waterproof protection to withstand rain, snow, moisture, and dust without internal leaking. The sequential flash mode creates a modern dynamic appearance while enhancing driving safety by making your vehicle more visible to other drivers. Installation is straightforward with the plug-and-play T10 light base design that requires no modifications. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. The set includes one pair of lights covering both driver and passenger sides, with each light measuring approximately 4.41 inches in length and designed for 12V automotive electrical systems with a rated lifespan of 50,000 hours.