# TL1240 Illuminated Switch

**URL:** <https://forum.midibox.org/t/tl1240-illuminated-switch/19402>\
**Category:** Parts Questions\
**Tags:** button, switch\
**Created:** [January 22, 2016, 3:16am UTC](https://forum.midibox.org/t/tl1240-illuminated-switch/19402 "2016-01-22T03:16:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mongrol](https://forum.midibox.org/user_avatar/forum.midibox.org/mongrol/32/582_2.png) [@mongrol](https://forum.midibox.org/u/mongrol)\
**Post date:** [January 22, 2016, 3:16am UTC](https://forum.midibox.org/t/tl1240-illuminated-switch/19402/1 "2016-01-22T03:16:39Z")

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Hi folks,

In the&nbsp;[Wilba BOM docs](http://www.midibox.org/dokuwiki/doku.php?id=wilba_mb_seq_parts_guide)&nbsp;there is this sentence.

> Quote
> 
> The TL-1240 are short (8.2mm) so they cannot be used with encoders installed but are wired correctly for the LEDs.&nbsp;

Can someone tell me what the actually means? I understand they are 8.2mm (seems small) and that the gap (10mm) and panel (3mm) means they would actually be below the panel surface. How would this work? Does this mean you can’t actually install the encoders at all in order to bring the 10mm gap down?