Feature: Each of these 3157 LED bulbs equips a built-in strobe/flashing system with a high-quality 3X projector glass lens, which makes the light beam highly focused and projects light much farther away than the normal model. When applying the brakes, it will flash 5 times and then continue illuminating until the brake pedal is released. Its definitely helps you stand out when you're in traffic, foggy, or at night. It will give you a more safe driving experience, but also style your car look. One Set High Power 3157 LED Strobe Light BulbsColor: RedContinue Flashing Function When Brake Lights Are OnIdeal For Cars Brake/Stop Light, Tail LightHeat Resistant, Prevent Problem Overheating360 Degree Projector Lens Light OutputProduct Description:Condition: NewTo Fit: Tail LightBulb Color: RedBrand: UnbrandedType: Parking Lot LightsVoltage: 12-24(V)Light Source Power: 3(W)Color Temperature: 1000KWPhrails:Because LED bulbs have a lower wattage compared to stock filament bulbs, so when installing on some newer European cars, you may need to touch the load resistors to get rid of the dashboard error code or flickering problem. Package Included:2pcs 3157 LED Strobe Light Bulb Note:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.