What is the difference between H4 and 9003 Bulb? - Toyota Yaris Forums

Syroyizhka · 01-28-2011, 12:06 AM

I just bought replacement bulbs, and before i had the 9003 bulbs at 15,000 K....but I had to keep moving them around in order to get the right alligmnent towards the road, because otherwise people would flash their brights at me...Would I have easier time installing H4 instead or are they the same exact same... if so, which way is the metal peice on the bulb supposed to face (ex. 2oclock, etc)

01-28-2011, 12:06 AM	#1
Syroyizhka Drives: 2007 Yaris Hatchback Join Date: Mar 2009 Location: Cleveland, Ohio Posts: 137	What is the difference between H4 and 9003 Bulb? I just bought replacement bulbs, and before i had the 9003 bulbs at 15,000 K....but I had to keep moving them around in order to get the right alligmnent towards the road, because otherwise people would flash their brights at me...Would I have easier time installing H4 instead or are they the same exact same... if so, which way is the metal peice on the bulb supposed to face (ex. 2oclock, etc)