Tech Info >> Halogen Bulb Shootout: The Good, the Blue, and the UGLY > Page | 1 | 2 | 3 | 4 | 5 | Page Four: The Yellow     OE H4: Low Beam OE H4: High Beam Note, the above images of the OE bulb setup are shown at the top of each page for your reference.     Yellow H4: Low Beam Yellow H4: High Beam Yellow light pieces through in poorer weather conditions and unlike blue, does not disperse easily. Light output is just about equal in comparison to the OE bulbs, so is current draw. Overall, these are good performers, especially in foglamps.       Competition Yellow H4: Low Beam Competition Yellow H4: High Beam Amazing what high wattage competition bulbs can do, isn't it? Lifespan is short. Cost is reasonable. Remember, glass and metal headlamp housing mandatory. Heavy-duty relay wiring harness is absolutely necessary. Continue to Next Page