We are one of best 1157 led switchback bulbs from Chinese factory.

All of our 1157 led switchback bulbs are 12v 21w.

The base type of 1157 led switchback bulbs is “BAY15D”.

Meanwhile, all of our 1157 led switchback bulbs are long life.

For example, the life time of our 1157 led switchback bulbs is 50000 hours.

Our present 1157 led switchback bulbs also CANBUS error free designs.

In order to make you clearly our 1157 led switchback bulbs, I will show you pictures as below.