LED 3157 Type 1 Asymmetrical Switchbacks

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soulsea

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sale pending

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I bought these for my pending retro, but we're not going to use switchbacks so I don't need them. They are brand new, never installed, as I received them from this ebay seller/listing: http://www.ebay.com/itm/17073973166...X:IT&_trksid=p3984.m1439.l2649#ht_2157wt_1552 (for reference only, this is not my listing)

Type 1 means that when the turn signal is activated the light sequence is amber/white back and forth.

Asymmetrical refers to the fact that the white and amber leds are not on a 50/50 ratio ... there are 40 white leds and 80 amber for a total of 120. This configuration is recommended to accentuate turn signals which are considered critical lighting, and relatively minimize either the park or drl function (depending on how you wish to wire them) closer to oem brightness.

They were recommended to me by hidplanet members, but I cannot review them myself since I never installed them.

As with all led bulbs, you will need to purchase load resistors for the turn signal function in order to prevent hyperflash (fast blink).

$30 shipped.
 
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NathanJax

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Since you researched them, did you ever see a pic (or vid) of these on our truck?
 
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soulsea

soulsea

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Nope I didn't ... but they seemed to me a perfect park/ts switchback for the upper reflectors in the NNBS Yukon housings.

---------- Post added at 11:45 AM ---------- Previous post was at 11:42 AM ----------

Noting that I was going to originally use them as drl/ts in the upper reflector ... but extracting the drl signal from the Yukon's lower H13 is somewhat more complicated.

Anyhoot, these will work with any truck's dual function bulb.
 

chauncey0337

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Can you get me a measurement of the bulb(bottom of bulb to top of bulb not including base)?
I may be interested.
 
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soulsea

soulsea

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Can you get me a measurement of the bulb(bottom of bulb to top of bulb not including base)?
I may be interested.

The round part of the bulb is 1.5" long and from tip to tip including plug 2 1/4" ... give or take a fraction.

---------- Post added at 03:31 PM ---------- Previous post was at 03:28 PM ----------

Here, this is what it says on the ebay listing: Size: Approx +/- .030" (length 2.350’’) and (diameter 0.875’’)
 

sumo

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they will look like, the more bulbs, it will be a tad brighter

picture.jpg
picture.jpg
 

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