<p>Ultra-violet radiation is emitted primarily by sunlight, mercury lamps, black lights. </p>

<p>LEDs emitting visible light will not produce a significant amount of UV radiation required to discolour LEGO bricks. However, <a href="http://en.wikipedia.org/wiki/Ultraviolet#Ultraviolet_LEDs">LEDs can be manufactured to emit UV light</a>,</p>

CC BY-SA 3.0
2013-08-21T10:04:33.387Z
2013-08-21T10:04:33.387Z
Ambo100
<p>I'm building a LEGO model and planning on lighting it with a bank of 5 battery operated LEDs. I know sunlight negatively affects several LEGO colors. Will a bright LED harm the elements in my MOC the same way sunlight would?   </p>

CC BY-SA 3.0
2013-12-10T18:57:55.600Z
I assume these are small, battery operated LEDs? In which case heat shouldn't be too much of an issue - LEGO used to use the older style tungsten bulbs, so it should be fine.
Zhaph - Ben Duguid
<piece-information><lighting>
Will using a bright LED to light my MOC harm my LEGO?
Major Stackings
# Will using a bright LED to light my MOC harm my LEGO?

(Asked by: username_0 on 2013-08-21)

I'm building a LEGO model and planning on lighting it with a bank of 5 battery operated LEDs. I know sunlight negatively affects several LEGO colors. Will a bright LED harm the elements in my MOC the same way sunlight would?

**Tags:** piece-information, lighting

> **Comments:**
> **username_1**: I assume these are small, battery operated LEDs? In which case heat shouldn't be too much of an issue - LEGO used to use the older style tungsten bulbs, so it should be fine.  

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## 1 answers

### Answer by username_2 on 2013-08-21. Score: 7 | Accepted answer

Ultra-violet radiation is emitted primarily by sunlight, mercury lamps, black lights.

LEDs emitting visible light will not produce a significant amount of UV radiation required to discolour LEGO bricks. However, [LEDs can be manufactured to emit UV light](http://en.wikipedia.org/wiki/Ultraviolet#Ultraviolet_LEDs),


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