3156 4156 T20 LED Bulbs, 27 LED 5050 360-Degree Shine, Amber (2 Pieces)

Yes. Underground Lighting offers free shipping on orders over $99.90.

This T20 3156 LED bulb costs $39.99 per pair. The set includes two amber bulbs, each using 27 three-emitter 5050 SMD LEDs with 360° light coverage, and comes with a 1-year warranty.

Yes. 3156 LED and 4156 LED bulbs use the same T25 wedge-base design and are generally interchangeable for compatible single-function applications, such as backup or reverse lights. Both are single-intensity bulbs, so they operate at one brightness level rather than switching between low and high brightness like a 3157.

A 3156 bulb fits single-contact T25 wedge sockets and is commonly used for reverse/backup lights, turn signals, parking lights, and other single-function vehicle lighting. It is also commonly cross-referenced with 3456 and 4156 where the vehicle calls for the same socket and function.

Yes, you can replace a 3156 bulb with a 3157 LED in a single-function socket, such as a reverse or backup light. Both bulbs use the same wedge-base size, so a 3157 LED will physically fit a 3156 socket and operate at its maximum brightness because it uses only one circuit.

The reverse is not true. A 3156 cannot replace a 3157 in a dual-function application because a 3156 has only one circuit, while a 3157 has separate circuits for low- and high-intensity functions.

For more information regarding these bulbs, check our 3156 Vs. 3157 LED bulb guidelines.