What are the specifications of car bulbs?
2 Answers
Here are the specifications of car bulbs: 1. H1, single filament and single pin, mostly used for high beam. 2. H7, single filament and double pins, mostly used for low beam. 3. H3 is a special type, generally used in Japanese cars, rarely used in other cars. 4. H4 is a double filament and three-pin bulb, with both low and high beams in one bulb. The standard is 55W for low beam and 60W for high beam; or 90W for low beam and 100W for high beam. Motorcycles generally use H4, with both beams at 35W, or 35W for high beam and 25W for low beam. 5. For signal lights (brake and turn signals), there are BAY15d, BA15d, BA15s, B12.3d, B10d. Here is some related information: 1. Car bulbs are essential for ensuring driving safety and illuminating the road at night. They provide safety and comfort for you and your family during driving. Car bulbs are part of automotive accessories, and car product services focus on automotive accessories. 2. Before replacing car bulbs, gloves and protective goggles are needed. Use alcohol to wipe off fingerprints or grease on the outer surface of the lamp shell. Never touch the glass surface of the bulb with bare hands to prevent shortening the bulb's lifespan due to fingerprints contaminating the glass shell. After replacing the bulb, the headlights should be adjusted to avoid glare.
Every time we talk about car bulbs, I get really excited. The main specifications of car bulbs revolve around three key points: voltage, wattage, and socket type. Voltage is typically 12 volts or 24 volts, depending on the vehicle model; wattage mostly ranges between 55 watts and 100 watts, affecting brightness levels; sockets come in common types like H4, H7, and H11, with different models corresponding to different lamp positions—for example, H7 is often used for low beams. I also enjoy paying attention to beam characteristics, such as color temperature ranging from 3000K to 6000K, which determines whether the light is warm yellow or cool white. When actually selecting bulbs, it's essential to refer to the original vehicle manual, as carelessly matching higher-wattage bulbs can easily damage the circuit. Lastly, it's worth mentioning that LED bulbs are now popular, with more complex specifications, including lumen values and such, making them worth learning more about.
