The type of xenon lamp is divided into two types according to the light bulb, which can be divided into three series: the 900 series, the H series and the D series. These models correspond to the ordinary headlight lamp models of the car.
900 series 9004\9005\9006\9007
Since the 9004 and 9007 original light bulbs belong to the double light type (far, near light one) light bulb, they also extend two models of 9004/L (near helium with far halogen), 9004/H (far and far light with near Halogen); 9007/L (near helium with far halogen), 9007/H (near helium with near-halogen); there are currently more popular 9004/9007 H/L (flexible/moving/hi low beam), this is Both 9004 and 9007 are universal dual light models. In the daily sales work, if the customer has specified two types of light bulbs, it is necessary to confirm with the customer whether it belongs to the remote helium because it is the most popular model. At the same time, the customer may also request a single lamp (9004-1 or 9007-1), so it is necessary to confirm with the customer to avoid mixing.
In fact, the lamp holders of the 9004 and 9007 are exactly the same, and they differ in the polarity of the input connections.