What am I missing here? The OEM halogen bulb is 55/60W. This LED is 55W. Where's the power saving?
Because this not a 55W led, maximum that is actually achieved for a H4 is 24W for the really bests one.
As you can see the 55W mentioned are for 2 bulb, that mean theoretically 27W per led.
That draw max 2 amps instead of 4,5 amps for halogen.
Also, to start the halogen the battery sees a short for half a second that put the voltage down, it can't help in winter.