Question about bulb lights

[Chamberpains]

How are the LED's performing in the snow? Do they produce enough heat to keep the lense free of snow packing? One thing I won't tolerate is a head light that is completely covered with snow. It creates a hell of predicament. Failing and fading vision through the night in the worst imaginable time in the worse condition...making an emergency road side stop on ice and snow in the pitch black of the night with snow socked headlights and unable to see in front of you to get pulled over to clean them off.