【Ultra Bright】 - Yorkim 3157 Amber Led Bulbs are built in Constant Current IC, powered by 54smd 3014 and 4smd high performance 3030 chipsets to offer 300% brightness than OEM halogen bulbs and give a refreshed look to your vehicle | 【Fitment】 - Plug and play. Non-Polarity design. Simply plug the bulb in and you are all set. Commonly used for 3056 3057 3156 3157 3357 3457 3757 4057 4114 4157 5702 LED Brake Lights, Backup Reverse Lights, Parking Lights, Turn Signal Lights and etc.**NOTE**: A 50w Load resistor(ASIN:B07KS6KMYG)might be needed to prevent error message or solve the hyper flash issue for some vehicles when replace for Turn Signal Lights. Not suitable for CK sockets | 【360 Degree Illuminating 】- Each bulb is 360 degree powered by 54smd 3014 and 4smd high performance 3030 chipsets with HD projector to ensure optimal visibility and stronger light penetration | 【High Quality And Long Lifespan】 - With built in Constant Current IC, Yorkim 3157 Led bulbs circuit is protected by stable input current. The circuit temperature is well controled in the safe range in order to ensure a long life span up to 50,000 hours | 【NOTE】 - Normally different LED bulbs are required for different parts of the same car (I.e. brake light, tail light, turn signal light, etc.). Although 3157 LED bulbs are most commonly used, they may not fit all parts of your car. Please check owner's manual to verify compatibility before purchase or send us a picture of your original bulb for our assistance on selecting the right product