'guaranteed' upgrade for rear 1157 light bulbs

fury fan

Senior Member
Mar 30, 2013
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I discovered an incandescent upgrade bulb for the 1157s for our brake lights (and probably amber front turn signals too).
Bulb 2357 is a drop-in for the 1157.
It has the same candlepower for taillighting, but is brighter on brake lights. (although I think the taillight is a little brighter also)
LEDs would be a superior improvement, but trying to find a set that meets specs and is bright enough, and fills the light cavity without being spotty, well, it's a gamble.
Below is some light reading, pictures will follow.

2357 VS 1157 Bulbs | What’s The Difference?.

Shorter lifespan than 1157 bulbsBetter longevity than 2357 bulbs
High filament is only rated for around 400 hours with regular usageHigh filament is rated for a 1200 hour lifespan with regular usage
25% brighter light output than 1157 bulbsConsiderably dimmer brightness than 2357 bulbs
40 MSCP rating32 MSCP rating
Efficient heat dissipationHalogen version of this bulb runs quite hot and can melt or distort plastic housings and lenses on tail lights
More budget friendly bulbsStill affordable, but not quite as budget friendly as 2357 bulbs


Brightness is significantly higher on 2357 bulbs compared to 1157 bulbs. In fact 2357 bulbs have a rating of 40 MSCP compared to 32 of 1157 bulbs.

That makes for a 25% boost in overall brightness on 2357 bulbs, resulting in brighter, more visible, clearer, and more visually appealing light output on the 2357 bulbs.


As a consequence of their higher performance, 2357 bulbs have a shorter lifespan compared to that of 1157 bulbs.

The high filament on 2357 bulbs is rated for around 400 hours with regular usage. That same high filament in 1157 bulbs is rated for a whopping 1200 hours with regular usage.

As for the low filament, both bulbs feature a lifespan of 5000 hours. However, if you are looking for the longer lasting bulb to put on your car, 1157 is a compelling option.

Heat dissipation​

2357 bulbs win out in this category. They have efficient heat diffusion features that resist heat damage and allow you to mount these bulbs in a wider range of locations on the car.

On the other hand, 1157 bulbs, specifically the halogen 1157 bulbs, run quite hot. So much so that they melt and distort plastic housings, lenses, and tail lights.

While this won’t be a problem for lights that are only used for short periods, definitely consider this if you are planning on using these bulbs in a location that is requires ‘always-on’ functionality.


Despite being the higher performing of the two, 2357 bulbs are priced more competitively than 1157 bulbs.

2357 bulbs are quite budget friendly, though you might have to look for them, as they are less common than 1157 bulbs.

1157 bulbs are still relatively affordable but not quite as much as 2357 bulbs. That said, they are one of the most common bulbs found on the market so you won’t have to go searching for them.

As always, different manufacturers price their products differently so this isn’t necessarily a dealbreaker.
There certainly could be some disparity in how the camera captures the difference in brightness from the rear, depending on the angles between the camera and all the fresnels in the lenses.
But the shot on the inside of the garage door seems pretty objective.


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