I originally was planning on adding DRLs to my Honda Civic, until I realized they created added drain on the alternator, resulting in slightly reduced fuel economy (I know it's splitting hairs, but still
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).
But what about DRLs that are solar powered or powered by a turbine?
An example would be these:
8 LEDs Car DRL Daytime Running Light Use Wind Power
I'm sure they could be done as a DIY project if someone had the know-how too.
Any thoughts? Effect on FE or drag?