I used to have bad luck with LED car headlights. It looks like they are better. The low-power mode consumes about 1W, and the high-power mode consumes about 3.7W. In the low-power mode, they should work continuously for a long time, since there is no noticeable heating. They heat up quickly in high-power mode, so they can fail with continuous use. I installed them in my Jeep Grand Chrokee. I made a modification to the yellow turn signals. They only work intermittently and only in high-performance mode. I think they will last. I was wrong about them. You have a switching power supply. They have to work over a wide voltage range. I bought two sets of four to fill my jeep and my brother's pickup and I have two spares left.
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