600% Brighter Than Halogen Bulbs: With the lens enhancing light utilization, this 3157 led amber bulb emits super bright amber yellow light—600% brighter than traditional halogen 3157 bulbs. 66 high-precision SMD chips deliver 360° full-angle light output. The amber yellow turn signal light is clear and eye-catching, allowing oncoming and following vehicles to quickly recognize the turning intention, significantly improving driving safety during lane changes, turns, and other scenarios.gnificantly improving driving safety during lane changes, turns, and other scenarios.

Unique Lens Cover Design: Unlike most amber 3157 LED bulbs without lenses, this product features a custom optical lens with a high light transmittance of 95%, ensuring full and even light distribution. The lens diffuses strong light into a soft and concentrated warm yellow glow, which won’t dazzle other drivers. It not only guarantees the visibility of the turn signal but also ensures the driving safety of other vehicles on the road.

5 Mins Easy Installation：Non-polarity design fits US standard and CK sockets, perfectly fits 3157, 3157a, 3156, 3156a, 3056, 3056a, 3057, 3057a, 3757, 3757a, 4157, 4157a, 4157na, 4157 nak, 4156, 4156a, 3457, 3457a, 3047, 3047a, 4057, 4057a, 4114, 4114a socket types. Suitable for car front turn signal lights, rear turn signal lights, blinker lights, backup lights, reverse lights, tail lights, brake lights, parking lights, daytime running lights, and so on. Even beginners can finish installation in 5 minutes by directly replacing the original halogen bulb. (Please confirm your car’s bulb model before purchasing).

Durable & Long-Lasting：Made of aviation-grade aluminum body and scratch-resistant optical lens, accelerating heat conduction and diffusion for a significant boost in heat dissipation efficiency, preventing premature aging of LED chips caused by overheating. The service life of 4157a led bulb is up to 30,000 hours, reducing the frequency of bulb replacement.

Stable & Excellent Performance: Built-in EMC module, which has passed strict electromagnetic radiation tests. It will not interfere with on-board electronic devices such as car navigation, radio, and backup camera during operation, avoiding problems such as signal noise and screen flicker that affect the driving experience. Some vehicles may meet canbus issus such as bulbs flicker, hyper flash or error warning on dashboard, etc, load resistors will be helpful to solve these issues.