Views: 1 Author: Site Editor Publish Time: 2022-01-14 Origin: Site
For road cars, headlights can be said to be an indispensable piece of equipment. At present, most car models on the market still use the halogen bulbs that were introduced in the 1960s as the bulk. Although there will be some differences in details according to the configuration of the car model or the design of the car factory, the general specifications used are not far from the same. Today, I will take you to understand the specifications of various halogen bulbs commonly found on locomotives.
Headlights are an indispensable and important equipment for road cars.
M5 (H6)
Commonly known as small plate bulbs, there are two models in terms of specifications, PHILIPS calls it M5, and OSRAM calls it H6. Because the base plate is smaller than other specifications, it is called a small plate. In addition, under the same specifications, there is another design that uses no disk surface. The M5 (H6) bulb contains two sets of filaments, which are shared by the near and far lights. The lug used to determine the direction of the disk is one, which itself is not like the other specifications mentioned below, with contacts and the power supply are combined in a socket way, but like a general light bulb, it is connected by spring pressure. The two contacts at the bottom are the positive pole of the far and near lights, and the disk surface is the negative pole.
Commonly known as small plate M5 (H6) bulbs.
Another specification M5 (H6), the bottom contact is a bump instead of a pin design.
Due to the small size and low wattage of M5 (H6) bulbs, the power is usually around 18-35 watts, and the relative temperature is low. Due to the limitation of early material technology, most models of plastic lamp housings use M5 (H6) light cannons. Depending on the exhaust volume and power generation capacity, one to three sets of M5 (H6) configurations will be used to obtain a sufficient range of lighting. In recent years, many car manufacturers have replaced the M5 (H6) with the HS1 with better lighting effects, which has also gradually reduced the market visibility of the M5 (H6).
The domestic classic imitation racing model-YAMAHA FZR150 uses M5 (H6) specification bulbs.
H4
Another very mainstream specification on locomotives is the H4. Compared with the M5 (H6), the H4 is obviously one size larger, and the size of the disk is similar to that of other specifications. The plate itself has three lugs to orient the bulb. The bulb also contains two sets of filaments, far and near. The base of H4 is three-legged, which are the positive and negative poles of the far and near lights, respectively, and are fixed to the vehicle power supply by means of plugs.
The H4 has three pins, and the foolproof lugs have three.
H4 bulbs have high wattage power (usually 55 watts/60 watts), which is much better than M5 (H6) in terms of lighting effects. Among the early domestic cars, the models with glass lampshades, such as the Wolf and FZ, all use the H4 specification. In recent years, material technology has advanced, and plastic lamp housings can also have good high temperature tolerance. Therefore, in recent years, many car models with plastic lamp housings also use H4 lamp sets. Since H4 is also a common specification for automobiles, there are many choices of bulbs, so many riders will change M5 (H6) lamps to H4 in exchange for better lighting effects.