Because some circuits rely on the low resistance through original-type incandescent bulbs, they won't work right with the extremely-high resistance &/or polarity of
LEDs.
IF THE IMAGE IS TOO SMALL, click it.
This tachometer cluster takes 17 bulbs, 15 of which can be swapped to LED.
![ledswap.jpg Because some circuits rely on the low resistance through original-type incandescent bulbs, they won't work right with the extremely-high resistance &/or polarity of [url=https://www.ebay.com/itm/203920297657]LEDs[/url].
IF THE IMAGE IS TOO SMALL, click it.
This tachometer cluster takes 17 bulbs, 15 of which can be swapped to LED.
[url=https://www.supermotors.net/registry/media/279707][img]https://www.supermotors.net/getfile/279707/thumbnail/clustershells.jpg[/img][/url]](https://www.supermotors.net/getfile/1168087/fullsize/ledswap.jpg)