I wonder what is the max Voltage you'd ever see in that Honda. Some of the older cars would boost Voltage when started in very cold weather, like in the excess of 17V which a lot of LEDs won't handle, the same issue I had with LEDs in my lawn tractor until I put in that buck regulator. I don't think they do much of a cold boost in modern cars but haven't checked mine in the rare sub-zero conditions.
I never measured it, but I notice a soft ramp up of the brightness of the headlights after I start the car as if it is electronically controlled. Probably no more than 14 volts or so.
I wonder what is the max Voltage you'd ever see in that Honda. Some of the older cars would boost Voltage when started in very cold weather, like in the excess of 17V which a lot of LEDs won't handle, the same issue I had with LEDs in my lawn tractor until I put in that buck regulator. I don't think they do much of a cold boost in modern cars but haven't checked mine in the rare sub-zero conditions.
I never measured it, but I notice a soft ramp up of the brightness of the headlights after I start the car as if it is electronically controlled. Probably no more than 14 volts or so.