What is the difference between 3157 and 3457 bulb

Re: Difference in bulbs Just saw the sticky up top. Re: Difference in bulbs I don't see much difference in and A bulbs. Find More Posts by far2grumpy. Re: Difference in bulbs A, the A is for Amber. Find More Posts by PortugalFocus. Digg del. Posting Rules. Similar Threads. Replace DRL bulbs with maybe blue bulbs. What you think? If you examine the bulb closely, you can see that two of the wire contacts connect to the same point inside the bulb.

These two contacts are the common negative - grounds. Use the regular bulbs for the top tail lamp bulb on:. We are also finding other vehicles that are sometimes wired this way. As you can see from the diagrams, a regular led cannot be easily altered to make it into an SRCK:.

If you remove the bulb, rotate it degrees and reinsert, it will not light at all. If you use a "CK" bulb in a socket that is wired for a conventionally wired led bulb, it will work properly in bright mode, but it will not light in dim mode. If you remove, rotate the bulb degrees, and reinsert, it will not light at all. You can test how your sockets are wired using a multi-meter. Just set the meter to ohms an find the common ground contacts in the socket. These contacts will be common to any metal ground point on the vehicle and will register a zero or very low resistance reading on the ohmmeter with any common ground point.

If you find that you have 'CK" sockets and conventionally wired led bulbs, there are two solutions:. Swap the conventionally wired led bulbs for the "CK" led bulbs.

You can swap the wires to the socket to match the diagrams above. The is a single contact s. The led bulb can be used universally in either or applications. We usually ship bulbs, unless the is specified in the order, to provide the greatest flexibility of application for the user. If not sure which 2 leads are the positive leads, just bend all leads around to the opposite sides.

This will ensure that the high beam circuit connects to the high beam contact on the bulb. Click to see full answer. Beside this, what does a bulb fit? Commencing with a bulb , it's an industrial automotive lamp, which is also used in varied instruments, marine, railroad equipment, and aircraft.

Also, called as a miniature bulb , it has a plastic wedge base. Moreover, installing this bulb in the car lights will emit 2. Simply put, their base contact points. The bulb provides bright, white light and is easy to install. Legal for on road use.

It showed that the is in fact a brighter bulb. It is rated at the same wattage as the , but the brighter filament is rated at 40 candlepower vs. Will a bulb fit a ? What is the difference between and bulbs?