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Review: SuperModulation 3157 LEDs

4578 Views 6 Replies 6 Participants Last post by  Supermodulation
The community here at urges you to please use caution and seek professional assistance when performing modifications to your vehicle. Before attempting any modification it is advised that you refer to your Colorado or Canyon service manual or contact a certified mechanic as not all GMT355 trucks are the same. The views expressed in this 'product review' is the opinions of the author alone. The posts and content presented on this site reflect in no way the views of or it’s ownership.

A 355nation product review presented by

SuperModulation 3157 LEDs

Borrowed from PureNoSideHate, thanks!

Product Description
3157 LED bulbs


Void warranty?
No. Please see "Magnus Moss"

Reviewer's Vehicle
Make: Chevrolet
Model: Colorado
Year: 2012
Engine: 5.3L
Power windows: Yes
Sun Roof: No

Product Analysis
SuperModulation LEDs for the tail lights, made with the same attention to detail as everything else SuperModulation does.

Installation Analysis
Installation was pretty straight forward, I recommend having the lights turned on when you install the bulbs, as installing them backwards will result in them not lighting up. If the lights are on, it's much easier to catch then finding out later that half of them are backwards after reassembling everything.

Overall Opinion
I got these LEDs to replace a set of SuperBrightLEDs (45-LED) bulbs that I've had since the last truck. I wasn't horribly impressed with the SuperBrightLEDs fit-and-finish and, since I wanted to tint my tails, was looking for something a bit brighter.

Overall, the SuperModulation bulbs are of a higher assembly quality and are a bit brighter in running light mode, which is impressive as they have less LEDs (I counted 36) than the SuperBrightLEDs, however they are a larger module. Sadly, in a side-by-side comparison, it turns out that the SuperBrightLEDs are just that when the brake/turn signals are brought into play. The difference in brightness in this mode is noticeable.

That said, there is nothing wrong at all with the SuperModulation LEDs, and I'd recommend them as they fit a lot better in the sockets and seemed to be better assembled. While they aren't as bright as the SuperBrightLEDs when the turn signals and brake lights are brought into play, they are still plenty bright enough for every day use. I don't think you can go wrong with either set.

I've heard that some people have had issues with SuperBrightLED bulbs failing prematurely, but I can't speak to that.

Crappy audio quality, left side is SuperBrightLEDs and right side is SuperModulation LEDs​
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Good stuff guys!

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